diff --git a/fileinstall/src/main/java/org/apache/felix/fileinstall/internal/FileInstall.java b/fileinstall/src/main/java/org/apache/felix/fileinstall/internal/FileInstall.java
index 7d5de85..c94bde2 100644
--- a/fileinstall/src/main/java/org/apache/felix/fileinstall/internal/FileInstall.java
+++ b/fileinstall/src/main/java/org/apache/felix/fileinstall/internal/FileInstall.java
@@ -103,6 +103,7 @@
             set(ht, DirectoryWatcher.USE_START_TRANSIENT);
             set(ht, DirectoryWatcher.NO_INITIAL_DELAY);
             set(ht, DirectoryWatcher.START_LEVEL);
+            set(ht, DirectoryWatcher.OPTIONAL_SCOPE);
 
             // check if dir is an array of dirs
             String dirs = ht.get(DirectoryWatcher.DIR);