@@ -13,11 +13,10 @@
  * file.
  */
 
 #include "config.h"
 
-#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
 #import "OFString.h"
 
@@ -86,11 +85,11 @@
 			memcpy(retCString + j, append, appendLen);
 			j += appendLen;
 		} else
 			retCString[j++] = string[i];
 	}
-	assert(j == retLength);
+	OFAssert(j == retLength);
 
 	objc_autoreleasePoolPop(pool);
 
 	@try {
 		ret = [OFString stringWithUTF8String: retCString