diff --git a/gtk/gtk-keys.css.emacs b/gtk/gtk-keys.css.emacs
index 4b8221c5f1..9dd624074c 100644
--- a/gtk/gtk-keys.css.emacs
+++ b/gtk/gtk-keys.css.emacs
@@ -105,17 +105,17 @@
 }
 
 entry {
-  gtk-key-bindings: gtk-emacs-text-entry;
+  -gtk-key-bindings: gtk-emacs-text-entry;
 }
 
 textview {
-  gtk-key-bindings: gtk-emacs-text-entry, gtk-emacs-text-view;
+  -gtk-key-bindings: gtk-emacs-text-entry, gtk-emacs-text-view;
 }
 
 treeview {
-  gtk-key-bindings: gtk-emacs-tree-view;
+  -gtk-key-bindings: gtk-emacs-tree-view;
 }
 
 GtkMenuShell {
-  gtk-key-bindings: gtk-emacs-menu;
+  -gtk-key-bindings: gtk-emacs-menu;
 }
diff --git a/gtk/gtk-keys.css.mac b/gtk/gtk-keys.css.mac
index 4eb0024d69..e085356061 100644
--- a/gtk/gtk-keys.css.mac
+++ b/gtk/gtk-keys.css.mac
@@ -181,25 +181,25 @@
 }
 
 iconview {
-  gtk-key-bindings: gtk-mac-icon-view;
+  -gtk-key-bindings: gtk-mac-icon-view;
 }
 
 textview {
-  gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-alt-delete, gtk-mac-cmd-c, gtk-mac-text-view;
+  -gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-alt-delete, gtk-mac-cmd-c, gtk-mac-text-view;
 }
 
 entry {
-  gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-alt-delete, gtk-mac-cmd-c, gtk-mac-entry;
+  -gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-alt-delete, gtk-mac-cmd-c, gtk-mac-entry;
 }
 
 label {
-  gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-label;
+  -gtk-key-bindings: gtk-mac-alt-arrows, gtk-mac-label;
 }
 
 GtkFileChooserWidget {
-  gtk-key-bindings: gtk-mac-file-chooser;
+  -gtk-key-bindings: gtk-mac-file-chooser;
 }
 
 treeview {
-  gtk-key-bindings: gtk-mac-tree-view;
+  -gtk-key-bindings: gtk-mac-tree-view;
 }