diff --git a/tests/surface-global-test.c b/tests/surface-global-test.c
index 9923c3d1..6e991bab 100644
--- a/tests/surface-global-test.c
+++ b/tests/surface-global-test.c
@@ -27,7 +27,7 @@
 TEST(surface_to_from_global)
 {
 	struct weston_surface *surface;
-	GLfloat x, y;
+	float x, y;
 	wl_fixed_t fx, fy;
 	int32_t ix, iy;