diff --git a/collects/framework/private/frame.ss b/collects/framework/private/frame.ss
index 0335ac283e..03de4e517b 100644
--- a/collects/framework/private/frame.ss
+++ b/collects/framework/private/frame.ss
@@ -1019,7 +1019,7 @@
       (define/override (editing-this-file? filename)
         (let ([path-equal?
                (λ (x y)
-                 (with-handlers ((exn:fail:filesystem? (λ (x) #f)))
+                 (with-handlers ((exn:fail? (λ (x) #f)))
                    (equal? (normal-case-path (normalize-path x))
                            (normal-case-path (normalize-path y)))))])
           (let ([this-fn (get-filename)])