diff --git a/include/curl/curlbuild.h.dist b/include/curl/curlbuild.h.dist
index 0de850263..20fdef8ac 100644
--- a/include/curl/curlbuild.h.dist
+++ b/include/curl/curlbuild.h.dist
@@ -389,8 +389,8 @@
 #    define CURL_SUFFIX_CURL_OFF_T     L
 #    define CURL_SUFFIX_CURL_OFF_TU    UL
 #  endif
-#  define CURL_TYPEOF_CURL_SOCKLEN_T unsigned int
-#  define CURL_SIZEOF_CURL_SOCKLEN_T 4
+#  define CURL_TYPEOF_CURL_SOCKLEN_T FIXME
+#  define CURL_SIZEOF_CURL_SOCKLEN_T -1
 
 #elif defined(__OS400__)
 #  if defined(__ILEC400__)
diff --git a/packages/vms/config-vms.h b/packages/vms/config-vms.h
index 88be0466f..fa64b813a 100644
--- a/packages/vms/config-vms.h
+++ b/packages/vms/config-vms.h
@@ -284,7 +284,7 @@
 #define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
 
 /* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 unsigned int
+#define GETNAMEINFO_TYPE_ARG2 FIXME
 
 /* Define to the type of args 4 and 6 for getnameinfo. */
 #define GETNAMEINFO_TYPE_ARG46 size_t