diff --git a/src/TrackPanel.cpp b/src/TrackPanel.cpp
index 39bcfc7e3..21f3798fc 100644
--- a/src/TrackPanel.cpp
+++ b/src/TrackPanel.cpp
@@ -4637,7 +4637,7 @@ void TrackPanel::HandleWheelRotation(wxMouseEvent & event)
       Refresh(false);
    } else
    {
-      // MM: Zoom up/down when used without modifier keys
+      // MM: Scroll up/down when used without modifier keys
       double lines = steps * 4 + mVertScrollRemainder;
       mVertScrollRemainder = lines - floor(lines);
       lines = floor(lines);