diff --git a/app/os_macos.go b/app/os_macos.go
index b541c436..1789b5c0 100644
--- a/app/os_macos.go
+++ b/app/os_macos.go
@@ -117,10 +117,10 @@ func gio_onFrameCallback(view C.CFTypeRef) {
 func gio_onKeys(view C.CFTypeRef, cstr *C.char, ti C.double, mods C.NSUInteger) {
 	str := C.GoString(cstr)
 	var kmods key.Modifiers
-	if mods&C.NSEventModifierFlagCommand != 0 {
+	if mods&C.NSCommandKeyMask != 0 {
 		kmods |= key.ModCommand
 	}
-	if mods&C.NSEventModifierFlagShift != 0 {
+	if mods&C.NSShiftKeyMask != 0 {
 		kmods |= key.ModShift
 	}
 	viewDo(view, func(views viewMap, view C.CFTypeRef) {