diff --git a/src/libImaging/ImagingUtils.h b/src/libImaging/ImagingUtils.h
index 6424883ea5b..24eef2dbfb5 100644
--- a/src/libImaging/ImagingUtils.h
+++ b/src/libImaging/ImagingUtils.h
@@ -14,8 +14,8 @@
 #define MASK_UINT32_CHANNEL_3 0xff000000
 #endif
 
-#define MAX(a, b) (a > b ? a : b)
-#define MIN(a, b) (a < b ? a : b)
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
 
 #define SHIFTFORDIV255(a) ((((a) >> 8) + a) >> 8)