diff --git a/src/mesa/drivers/dri/i965/test_vf_float_conversions.cpp b/src/mesa/drivers/dri/i965/test_vf_float_conversions.cpp
index a21000c6645..2ea36fd3810 100644
--- a/src/mesa/drivers/dri/i965/test_vf_float_conversions.cpp
+++ b/src/mesa/drivers/dri/i965/test_vf_float_conversions.cpp
@@ -60,7 +60,8 @@ union fu {
 static unsigned
 f2u(float f)
 {
-   return (union fu){ .f = f }.u;
+   union fu fu = { .f = f };
+   return fu.u;
 }
 
 TEST_F(vf_float_conversion_test, test_vf_to_float)