diff --git a/go.sh b/go.sh
index a1172206aa..9774a8cef5 100755
--- a/go.sh
+++ b/go.sh
@@ -2,6 +2,6 @@
 # Runs the go command with the proper Go and cgo flags.
 
 GOFLAGS="$GOFLAGS -tags=nobadger,nomysql,nopgx" \
-	CGO_CFLAGS="$CGO_CFLAGS $(php-config --includes) $(sh "$(dirname "$0")/mtls-cflags.sh")" \
-	CGO_LDFLAGS="$CGO_LDFLAGS $(php-config --ldflags) $(php-config --libs)" \
+	CGO_CFLAGS="$CGO_CFLAGS $(${PHP_CONFIG:-php-config} --includes) $(sh "$(dirname "$0")/mtls-cflags.sh")" \
+	CGO_LDFLAGS="$CGO_LDFLAGS $(${PHP_CONFIG:-php-config} --ldflags) $(${PHP_CONFIG:-php-config} --libs)" \
 	go "$@"