diff --git a/Python/ast.c b/Python/ast.c
index 057b64d..434236b 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -3067,16 +3067,7 @@
 #endif
 	if (*end == 'l' || *end == 'L')
 		return PyLong_FromString((char *)s, (char **)0, 0);
-	if (s[0] == '0') {
-		x = (long) PyOS_strtoul((char *)s, (char **)&end, 0);
- 		if (x < 0 && errno == 0) {
-	 			return PyLong_FromString((char *)s,
-							 (char **)0,
-							 0);
-		}
-	}
-	else
-		x = PyOS_strtol((char *)s, (char **)&end, 0);
+	x = PyOS_strtol((char *)s, (char **)&end, 0);
 	if (*end == '\0') {
 		if (errno != 0)
 			return PyLong_FromString((char *)s, (char **)0, 0);