diff --git a/rules-tests/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector/Fixture/skip_abstract_class.php.inc b/rules-tests/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector/Fixture/skip_abstract_class.php.inc
new file mode 100644
index 00000000000..db0d695efea
--- /dev/null
+++ b/rules-tests/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector/Fixture/skip_abstract_class.php.inc
@@ -0,0 +1,11 @@
+<?php
+
+namespace Rector\Tests\CodeQuality\Rector\Class_\CompleteDynamicPropertiesRector\Fixture;
+
+abstract class SkipAbstractClass
+{
+    public function set()
+    {
+        $this->value = 5;
+    }
+}
diff --git a/rules/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector.php b/rules/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector.php
index 3ca7963115c..9def47c7b58 100644
--- a/rules/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector.php
+++ b/rules/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector.php
@@ -114,6 +114,11 @@ private function shouldSkipClass(Class_ $class): bool
             return true;
         }
 
+        // abstract class property might be accessed from child class
+        if ($class->isAbstract()) {
+            return true;
+        }
+
         $className = (string) $this->getName($class);
         if (! $this->reflectionProvider->hasClass($className)) {
             return true;