diff --git a/lib/inet_pton.c b/lib/inet_pton.c
index 24820fe25..c79b46335 100644
--- a/lib/inet_pton.c
+++ b/lib/inet_pton.c
@@ -108,7 +108,8 @@ inet_pton4(const char *src, unsigned char *dst)
 
   saw_digit = 0;
   octets = 0;
-  *(tp = tmp) = 0;
+  tp = tmp;
+  *tp = 0;
   while ((ch = *src++) != '\0') {
     const char *pch;