diff --git a/leetcode/0494.Target-Sum/494. Target Sum.go b/leetcode/0494.Target-Sum/494. Target Sum.go
index b9fac40c..80415232 100644
--- a/leetcode/0494.Target-Sum/494. Target Sum.go	
+++ b/leetcode/0494.Target-Sum/494. Target Sum.go	
@@ -6,7 +6,7 @@ func findTargetSumWays(nums []int, S int) int {
 	for _, n := range nums {
 		total += n
 	}
-	if S > total || (S+total)%2 == 1 {
+	if S > total || (S+total)%2 == 1 || S+total < 0 {
 		return 0
 	}
 	target := (S + total) / 2