diff --git a/lib/sentry_dart_plugin.dart b/lib/sentry_dart_plugin.dart
index 9782775..731c388 100644
--- a/lib/sentry_dart_plugin.dart
+++ b/lib/sentry_dart_plugin.dart
@@ -246,32 +246,33 @@ class SentryDartPlugin {
     return results;
   }
 
-  Future<List<String>> _findAllJsFilePaths() => _collectWebFiles<String>(
-        extension: '.js',
-        builder: (file) => file.path,
-      );
-
   Future<List<File>> _findAllSourceMapFiles() => _collectWebFiles<File>(
         extension: '.js.map',
         builder: (file) => file.absolute,
       );
 
   Future<bool> _injectDebugIds() async {
-    List<String> params = [];
-    params.add('sourcemaps');
-
-    // There is currently a sentry-cli bug that mutates the Flutter Web source map
-    // in such a way that it becomes corrupt / invalid -> that's why we need to
-    // inject each file separately instead of using a directory
-    // TODO(buenaflor): in the future we should use the directory when sentry-cli is fixed
-    final jsFilePaths = await _findAllJsFilePaths();
-    if (jsFilePaths.isEmpty) {
+    final fs = injector.get<FileSystem>();
+    final webDir = fs.directory(_configuration.webBuildFilesFolder);
+    if (!await webDir.exists()) {
+      Log.warn(
+        'Web build directory "${_configuration.webBuildFilesFolder}" does not exist, '
+        'skipping debug id injection.',
+      );
       return false;
     }
 
+    List<String> params = [];
+    params.add('sourcemaps');
     params.add('inject');
-    for (final path in jsFilePaths) {
-      params.add(path);
+    params.add(_configuration.webBuildFilesFolder);
+
+    // Honor ignore_web_source_paths during injection so ignored files are not
+    // mutated in-place. Patterns are gitignore-style globs interpreted relative
+    // to the web build folder, matching the upload step.
+    for (final ignorePattern in _configuration.ignoreWebSourcePaths) {
+      params.add('--ignore');
+      params.add(ignorePattern);
     }
 
     params.addAll(_baseCliParams());
diff --git a/test/plugin_test.dart b/test/plugin_test.dart
index dae8d66..d06ece6 100644
--- a/test/plugin_test.dart
+++ b/test/plugin_test.dart
@@ -102,7 +102,7 @@ void main() {
           expect(commandLog, [
             '$cli $args debug-files upload $orgAndProject --include-sources $buildDir/app/outputs',
             '$cli $args releases $orgAndProject new $release',
-            '$cli sourcemaps inject $buildDir/web/file.js $orgAndProject',
+            '$cli sourcemaps inject $buildDir/web --ignore testdir/**/*.js $orgAndProject',
             '$cli $args sourcemaps upload --release $release $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ ./ --ext dart --ignore testdir/**/*.js $orgAndProject',
             '$cli $args releases $orgAndProject set-commits $release --auto --ignore-missing',
             '$cli $args releases $orgAndProject finalize $release'
@@ -293,7 +293,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $release',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $release $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $release --auto',
               '$cli $args releases $orgAndProject finalize $release'
@@ -314,7 +314,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $configRelease',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $configRelease $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $configRelease --auto',
               '$cli $args releases $orgAndProject finalize $configRelease'
@@ -337,7 +337,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $release',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $release --dist $build $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $release --auto',
               '$cli $args releases $orgAndProject finalize $release'
@@ -359,7 +359,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $configRelease',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $configRelease $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $configRelease --auto',
               '$cli $args releases $orgAndProject finalize $configRelease'
@@ -381,7 +381,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $release',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $release --dist $configDist $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $release --auto',
               '$cli $args releases $orgAndProject finalize $release'
@@ -406,7 +406,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $release',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $release --dist $configDist $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $release --auto',
               '$cli $args releases $orgAndProject finalize $release'
@@ -429,7 +429,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $configRelease',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $configRelease --dist $configDist $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $configRelease --auto',
               '$cli $args releases $orgAndProject finalize $configRelease'
@@ -457,7 +457,7 @@ void main() {
             final args = commonArgs;
             expect(commandLog, [
               '$cli $args releases $orgAndProject new $configRelease',
-              '$cli sourcemaps inject build/web/file.js $orgAndProject',
+              '$cli sourcemaps inject build/web $orgAndProject',
               '$cli $args sourcemaps upload --release $configRelease --dist $configDist --url-prefix ~/app/ $buildDir/web --ext js --ext map --strip-prefix ../../Documents --strip-prefix ../../../../ --strip-prefix ../../ --strip-prefix ../ $orgAndProject',
               '$cli $args releases $orgAndProject set-commits $configRelease --auto',
               '$cli $args releases $orgAndProject finalize $configRelease'