diff --git a/build_files/src/main/java/eu/arcadex/system/build_sequence/Activator.java b/build_files/src/main/java/eu/arcadex/system/build_sequence/Activator.java
index 4a49ff1..fbaf49d 100644
--- a/build_files/src/main/java/eu/arcadex/system/build_sequence/Activator.java
+++ b/build_files/src/main/java/eu/arcadex/system/build_sequence/Activator.java
@@ -25,6 +25,7 @@ public class Activator implements BundleActivator {
 
     @Override
     public void stop(BundleContext bundleContext) throws Exception {
+        fileSystemServiceTracker.close();
         service.unregister();
     }