diff --git a/gtk2_ardour/mnemonic-us.bindings.in b/gtk2_ardour/mnemonic-us.bindings.in
index 4089b71be4..0799f1b06c 100644
--- a/gtk2_ardour/mnemonic-us.bindings.in
+++ b/gtk2_ardour/mnemonic-us.bindings.in
@@ -91,10 +91,10 @@
 
 ;; HOME ROW
 
-(gtk_accel_path "<Actions>/Editor/zoom-to-region" "z")
+(gtk_accel_path "<Actions>/Editor/zoom-to-region" "<%SECONDARY%>z")
 (gtk_accel_path "<Actions>/Editor/undo" "<%PRIMARY%>z")
 (gtk_accel_path "<Actions>/Editor/toggle-zoom" "<%TERTIARY%>z")
-(gtk_accel_path "<Actions>/MouseMode/set-mouse-mode-zoom" "<%TERTIARY%>z")
+(gtk_accel_path "<Actions>/MouseMode/set-mouse-mode-zoom" "z")
 (gtk_accel_path "<Actions>/Editor/editor-cut" "<%PRIMARY%>x")
 (gtk_accel_path "<Actions>/Editor/editor-copy" "<%PRIMARY%>c")
 (gtk_accel_path "<Actions>/Common/ToggleColorManager" "<%WINDOW%>c")