diff --git a/jetty-osgi/jetty-osgi-boot/src/main/java/org/eclipse/jetty/osgi/boot/utils/internal/DefaultFileLocatorHelper.java b/jetty-osgi/jetty-osgi-boot/src/main/java/org/eclipse/jetty/osgi/boot/utils/internal/DefaultFileLocatorHelper.java
index 6b09190b5a4..4525a115134 100644
--- a/jetty-osgi/jetty-osgi-boot/src/main/java/org/eclipse/jetty/osgi/boot/utils/internal/DefaultFileLocatorHelper.java
+++ b/jetty-osgi/jetty-osgi-boot/src/main/java/org/eclipse/jetty/osgi/boot/utils/internal/DefaultFileLocatorHelper.java
@@ -25,6 +25,7 @@ import java.util.zip.ZipFile;
 
 import org.eclipse.jetty.osgi.boot.utils.BundleFileLocatorHelper;
 import org.eclipse.jetty.util.URIUtil;
+import org.eclipse.jetty.util.resource.FileResource;
 import org.osgi.framework.Bundle;
 
 /**
@@ -70,8 +71,8 @@ public class DefaultFileLocatorHelper implements BundleFileLocatorHelper
         if (url.getProtocol().equals("file"))
         {
             // some osgi frameworks do use the file protocole directly in some
-            // situations
-            return new File(url.toURI()).getParentFile().getParentFile();
+            // situations. Do use the FileResource to transform the URL into a File: URL#toURI is broken
+        	return new FileResource(url).getFile().getParentFile().getParentFile();
         }
         else if (url.getProtocol().equals("bundleentry"))
         {