diff --git a/sdk/lang/Array.h b/sdk/lang/Array.h
index c133068f..c98ced3c 100644
--- a/sdk/lang/Array.h
+++ b/sdk/lang/Array.h
@@ -13,7 +13,7 @@
 #include <stdint.h>
 
 
-#define _lang_array__Array_new(type, size) ((_lang_array__Array) { size, array_malloc(size * sizeof(type)) });
+#define _lang_array__Array_new(type, size) ((_lang_array__Array) { size, array_malloc((size) * sizeof(type)) });
 
 #define _lang_array__Array_get(array, index, type) ( \
     (index < 0 || index >= array.length) ? \