diff --git a/src/KeyBindingsDefaults.ts b/src/KeyBindingsDefaults.ts
index ed98a06c7f..f777f2c5f6 100644
--- a/src/KeyBindingsDefaults.ts
+++ b/src/KeyBindingsDefaults.ts
@@ -68,7 +68,6 @@ const messageComposerBindings = (): KeyBinding<MessageComposerAction>[] => {
                 ctrlOrCmd: true,
             },
         },
-        // Note: the following two bindings also work with just HOME and END, add them here?
         {
             action: MessageComposerAction.MoveCursorToStart,
             keyCombo: {
@@ -165,6 +164,14 @@ const autocompleteBindings = (): KeyBinding<AutocompleteAction>[] => {
                 shiftKey: true,
             },
         },
+        {
+            action: AutocompleteAction.ApplySelection,
+            keyCombo: {
+                key: Key.TAB,
+                ctrlKey: true,
+                shiftKey: true,
+            },
+        },
         {
             action: AutocompleteAction.Cancel,
             keyCombo: {