diff --git a/wolfssl/wolfcrypt/types.h b/wolfssl/wolfcrypt/types.h
index cd6d42051..6b4dce0b5 100644
--- a/wolfssl/wolfcrypt/types.h
+++ b/wolfssl/wolfcrypt/types.h
@@ -598,8 +598,8 @@ typedef struct w64wrapper {
         #define WC_DECLARE_ARRAY(VAR_NAME, VAR_TYPE, VAR_ITEMS, VAR_SIZE, HEAP) \
             VAR_TYPE VAR_NAME[VAR_ITEMS][VAR_SIZE]
         #define WC_INIT_ARRAY(VAR_NAME, VAR_TYPE, VAR_ITEMS, VAR_SIZE, HEAP) do {} while(0)
-        #define WC_FREE_VAR(VAR_NAME, HEAP) /* nothing to free, its stack */
-        #define WC_FREE_ARRAY(VAR_NAME, VAR_ITEMS, HEAP)  /* nothing to free, its stack */
+        #define WC_FREE_VAR(VAR_NAME, HEAP) do {} while(0) /* nothing to free, its stack */
+        #define WC_FREE_ARRAY(VAR_NAME, VAR_ITEMS, HEAP) do {} while(0) /* nothing to free, its stack */
 
         #define WC_DECLARE_ARRAY_DYNAMIC_DEC(VAR_NAME, VAR_TYPE, VAR_ITEMS, VAR_SIZE, HEAP) \
             VAR_TYPE* VAR_NAME[VAR_ITEMS]; \