diff --git a/src/core/ngx_inet.c b/src/core/ngx_inet.c
index 4fccc17..d2bbbfb 100644
--- a/src/core/ngx_inet.c
+++ b/src/core/ngx_inet.c
@@ -44,11 +44,7 @@
         return INADDR_NONE;
     }
 
-    if (n != 3) {
-        return INADDR_NONE;
-    }
-
-    if (octet < 256) {
+    if (n == 3 && octet < 256) {
         addr = (addr << 8) + octet;
         return htonl(addr);
     }