diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 81aeb83cbb5..b2969a210a7 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -585,13 +585,12 @@ do {                                     \
 
 static INLINE uint32_t util_unsigned_fixed(float value, unsigned frac_bits)
 {
-   value *= (1<<frac_bits);
-   return value < 0 ? 0 : value;
+   return value < 0 ? 0 : (uint32_t)(value * (1<<frac_bits));
 }
 
 static INLINE int32_t util_signed_fixed(float value, unsigned frac_bits)
 {
-   return value * (1<<frac_bits);
+   return (int32_t)(value * (1<<frac_bits));
 }