diff --git a/dgamelaunch.c b/dgamelaunch.c
index 4d5f24c..acfd018 100644
--- a/dgamelaunch.c
+++ b/dgamelaunch.c
@@ -65,7 +65,7 @@
 #endif
 
 #ifndef ARRAY_SIZE
-# define ARRAY_SIZE(x) sizeof(x) / sizeof(x[0])
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 #endif
 
 #include <fcntl.h>