diff --git a/binding.gyp b/binding.gyp
index 56e82aa..023762a 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -21,7 +21,8 @@
 	        ['OS=="mac"', {
 	        	'include_dirs':['/usr/local/include/opencv'],
 	          'xcode_settings': {
-	            'GCC_ENABLE_CPP_EXCEPTIONS': 'YES'
+	            'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+	            'GCC_ENABLE_CPP_RTTI': '-frtti'
 	          },
 	          'libraries':[
 							'-lopencv_core',