diff --git a/Model/IMLoading.m b/Model/IMLoading.m
index 0a792f99b..e4b7a885e 100644
--- a/Model/IMLoading.m
+++ b/Model/IMLoading.m
@@ -32,6 +32,9 @@
 #include "AppKit/IMLoading.h"
 #include "AppKit/IMCustomObject.h"
 
+/* For awakeFromNib */
+#include <AppKit/NSNibLoading.h>
+
 void __dummy_IMLoading_functionForLinking()
 {
   __dummy_IMLoading_functionForLinking();