diff --git a/50. Count of 3's.c b/50. Count of 3's.c
index 617ada0..c037e7f 100644
--- a/50. Count of 3's.c	
+++ b/50. Count of 3's.c	
@@ -6,7 +6,7 @@ int count_3s(int n)
 	int count = 0;
 	while (n > 0)
 	{
-		if (n & 10 == 3)
+		if (n % 10 == 3)
 		{
 			count++;
 		}