diff --git a/src/AdornedRulerPanel.cpp b/src/AdornedRulerPanel.cpp
index 24092b9f6..da14c5986 100644
--- a/src/AdornedRulerPanel.cpp
+++ b/src/AdornedRulerPanel.cpp
@@ -2,7 +2,7 @@
 
   Audacity: A Digital Audio Editor
 
-  Ruler.cpp
+  AdornedRulerPanel.cpp
 
   Dominic Mazzoni