diff --git a/crypto/http/http_lib.c b/crypto/http/http_lib.c
index 7a0df7f2b27af..4d470e0fea879 100644
--- a/crypto/http/http_lib.c
+++ b/crypto/http/http_lib.c
@@ -252,7 +252,7 @@ static int use_proxy(const char *no_proxy, const char *server)
 {
     size_t sl;
     const char *found = NULL;
-    char host[300];
+    char host[NI_MAXHOST];
 
     if (!ossl_assert(server != NULL))
         return 0;