diff --git a/src/prefs/MousePrefs.cpp b/src/prefs/MousePrefs.cpp
index 5007ed04d..054783ec2 100644
--- a/src/prefs/MousePrefs.cpp
+++ b/src/prefs/MousePrefs.cpp
@@ -156,7 +156,7 @@ void MousePrefs::CreateList()
 
    AddItem(_("Shift-Wheel-Rotate"),_("Any"),          _("Scroll waveform"));
    AddItem(CTRL + _("-Wheel-Rotate"), _("Any"),       _("Zoom waveform in or out"));
-   AddItem(CTRL + _("Shift-Wheel-Rotate"),_("Any"),   _("Waveform (dB) range"));
+   AddItem(CTRL + _("-Shift-Wheel-Rotate"),_("Any"),   _("Waveform (dB) range"));
 
    mList->SetColumnWidth(BlankColumn, 0);
    mList->SetColumnWidth(ToolColumn, wxLIST_AUTOSIZE);