diff --git a/glamor/glamor_gradient.c b/glamor/glamor_gradient.c
index f1c36af69..165d211b9 100644
--- a/glamor/glamor_gradient.c
+++ b/glamor/glamor_gradient.c
@@ -34,11 +34,11 @@
 
 #ifdef RENDER
 
-#define LINEAR_SMALL_STOPS 6 + 2
-#define LINEAR_LARGE_STOPS 16 + 2
+#define LINEAR_SMALL_STOPS (6 + 2)
+#define LINEAR_LARGE_STOPS (16 + 2)
 
-#define RADIAL_SMALL_STOPS 6 + 2
-#define RADIAL_LARGE_STOPS 16 + 2
+#define RADIAL_SMALL_STOPS (6 + 2)
+#define RADIAL_LARGE_STOPS (16 + 2)
 
 #ifdef GLAMOR_GRADIENT_SHADER