diff --git a/src/osx/cocoa/nonownedwnd.mm b/src/osx/cocoa/nonownedwnd.mm
index d23a92aeee..821b444be2 100644
--- a/src/osx/cocoa/nonownedwnd.mm
+++ b/src/osx/cocoa/nonownedwnd.mm
@@ -77,6 +77,7 @@ bool shouldHandleSelector(SEL selector)
             || selector == @selector(deleteForward:)
             || selector == @selector(insertNewline:)
             || selector == @selector(insertTab:)
+            || selector == @selector(insertBacktab:)
             || selector == @selector(keyDown:)
             || selector == @selector(keyUp:)
             || selector == @selector(scrollPageUp:)