diff --git a/src/mraa.i b/src/mraa.i
index dd2e271..3ec6e5a 100644
--- a/src/mraa.i
+++ b/src/mraa.i
@@ -39,8 +39,6 @@
     }
 }
 
-%apply (char *STRING, size_t LENGTH) { (char *data, size_t length) };
-
 %include "common.hpp"
 
 %include "types.h"