diff --git a/src/network/inet_pton.c b/src/network/inet_pton.c
index 4496b47..e4cdad5 100644
--- a/src/network/inet_pton.c
+++ b/src/network/inet_pton.c
@@ -38,6 +38,7 @@ int inet_pton(int af, const char *restrict s, void *restrict a0)
 
 	for (i=0; ; i++) {
 		if (s[0]==':' && brk<0) {
+			if (i==7) return 0;
 			brk=i;
 			ip[i]=0;
 			if (!*++s) break;