diff --git a/lib/ace/conf/keybindings/default_mac.js b/lib/ace/conf/keybindings/default_mac.js
index ad1c9f26..0a652dda 100644
--- a/lib/ace/conf/keybindings/default_mac.js
+++ b/lib/ace/conf/keybindings/default_mac.js
@@ -26,7 +26,7 @@ return {
     "selectup": "Shift-Up",
     "golineup": "Up",
     "copylinesdown": "Command-Option-Down",
-    "movelinsedown": "Option-Down",
+    "movelinesdown": "Option-Down",
     "selecttoend": "Command-Shift-Down",
     "gotoend": "Command-End|Command-Down",
     "selectdown": "Shift-Down",
diff --git a/lib/ace/conf/keybindings/default_win.js b/lib/ace/conf/keybindings/default_win.js
index 6bcb1960..fd5d393c 100644
--- a/lib/ace/conf/keybindings/default_win.js
+++ b/lib/ace/conf/keybindings/default_win.js
@@ -26,7 +26,7 @@ return {
     "selectup": "Shift-Up",
     "golineup": "Up",
     "copylinesdown": "Ctrl-Alt-Down",
-    "movelinsedown": "Alt-Down",
+    "movelinesdown": "Alt-Down",
     "selecttoend": "Ctrl-Shift-Down",
     "gotoend": "Ctrl-End|Ctrl-Down",
     "selectdown": "Shift-Down",