1 files changed, 1 insertions, 0 deletions
diff --git a/MLKBinding.m b/MLKBinding.m
index b3e2826..e6aadd8 100644
--- a/MLKBinding.m
+++ b/MLKBinding.m
@@ -20,6 +20,7 @@
 #import "runtime-compatibility.h"
 
 #import <Foundation/NSException.h>
+#import <Foundation/NSString.h>
 
 
 static id UNBOUND;