diff --git a/shared/nm-utils/nm-vpn-plugin-macros.h b/shared/nm-utils/nm-vpn-plugin-macros.h
index c85ef17a7..06f5b2866 100644
--- a/shared/nm-utils/nm-vpn-plugin-macros.h
+++ b/shared/nm-utils/nm-vpn-plugin-macros.h
@@ -43,6 +43,10 @@ nm_utils_syslog_to_str (int syslog_level)
 
 /* possibly missing defines from newer libnm API. */
 
+#ifndef NM_VPN_PLUGIN_CONFIG_PROXY_PAC
+#define NM_VPN_PLUGIN_CONFIG_PROXY_PAC "pac"
+#endif
+
 #ifndef NM_VPN_PLUGIN_IP4_CONFIG_PRESERVE_ROUTES
 #define NM_VPN_PLUGIN_IP4_CONFIG_PRESERVE_ROUTES "preserve-routes"
 #endif