diff --git a/com.archimatetool.editor/src/com/archimatetool/editor/actions/MRUMenuManager.java b/com.archimatetool.editor/src/com/archimatetool/editor/actions/MRUMenuManager.java
index fd21889cd..9fad911af 100644
--- a/com.archimatetool.editor/src/com/archimatetool/editor/actions/MRUMenuManager.java
+++ b/com.archimatetool.editor/src/com/archimatetool/editor/actions/MRUMenuManager.java
@@ -187,7 +187,7 @@ boolean isTempFile(File file) {
         // File is in temp folder
         try {
             File tmpDir = new File(System.getProperty("java.io.tmpdir"));
-            return file.getCanonicalPath().startsWith(tmpDir.getCanonicalPath());
+            return file.getCanonicalFile().toPath().startsWith(tmpDir.getCanonicalFile().toPath());
         }
         catch(IOException ex) {
             ex.printStackTrace();