diff --git a/java/java.source.base/src/org/netbeans/modules/java/source/classpath/SourcePathCheck.java b/java/java.source.base/src/org/netbeans/modules/java/source/classpath/SourcePathCheck.java
index 479ef4b8d671..1f55244234d3 100644
--- a/java/java.source.base/src/org/netbeans/modules/java/source/classpath/SourcePathCheck.java
+++ b/java/java.source.base/src/org/netbeans/modules/java/source/classpath/SourcePathCheck.java
@@ -73,7 +73,7 @@ public void run(final Result result, final SchedulerEvent event) {
                         for (ClassPath.Entry entry : src.entries()) {
                             final URL url = entry.getURL();
                             if (!this.factory.firedFor.contains(url) &&
-                                    !JavaIndex.hasSourceCache(url,false) &&
+                                    !JavaIndex.hasSourceCache(url, true) &&
                                     FileOwnerQuery.getOwner(url.toURI()) != null) {
                                 unknown.add(url);
                                 this.factory.firedFor.add(url);