diff --git a/drivers/gpu/drm/amd/display/include/fixed31_32.h b/drivers/gpu/drm/amd/display/include/fixed31_32.h
index bd8a30462258bebbee6fb30cde5bf0ce5ec25061..76f64e91042260eb2249592bd97963224050a326 100644
--- a/drivers/gpu/drm/amd/display/include/fixed31_32.h
+++ b/drivers/gpu/drm/amd/display/include/fixed31_32.h
@@ -209,7 +209,7 @@ static inline struct fixed31_32 dc_fixpt_clamp(
 static inline struct fixed31_32 dc_fixpt_shl(struct fixed31_32 arg, unsigned char shift)
 {
 	ASSERT(((arg.value >= 0) && (arg.value <= LLONG_MAX >> shift)) ||
-		((arg.value < 0) && (arg.value >= (LLONG_MIN / (1 << shift)))));
+		((arg.value < 0) && (arg.value >= (LLONG_MIN / (1LL << shift)))));
 
 	arg.value = arg.value << shift;