diff --git a/test cases/common/135 generated assembly/main.c b/test cases/common/135 generated assembly/main.c
index 97fe723e3..b669cba27 100644
--- a/test cases/common/135 generated assembly/main.c	
+++ b/test cases/common/135 generated assembly/main.c	
@@ -1,5 +1,8 @@
 #include <stdio.h>
 
+#if defined(_WIN32) || defined(__CYGWIN__)
+ __declspec(dllimport)
+#endif
 unsigned square_unsigned (unsigned a);
 
 int