diff --git a/src/string/strstr.c b/src/string/strstr.c
index 4586058..b035d18 100644
--- a/src/string/strstr.c
+++ b/src/string/strstr.c
@@ -1,14 +1,14 @@
 char *strstr(const char *haystack, const char *needle)
 {
-	size_t i = 0;
+	const char *start = haystack;
 	size_t len;
 
 	len = strlen(needle);
-	while (haystack[i] != '\0')
+	while (*start != '\0')
 	{
-		if (strncmp(haystack + i, needle, len) == 0)
-			return haystack + i;
-		i++;
+		if (strncmp(start, needle, len) == 0)
+			return start;
+		start++;
 	}
 	return NULL;
 }