--- modules/enet/SCsub.orig	2019-03-23 10:48:38 UTC
+++ modules/enet/SCsub
@@ -21,7 +21,7 @@ if env['builtin_enet']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_enet.Append(CPPPATH=[thirdparty_dir])
+    env_enet.Prepend(CPPPATH=[thirdparty_dir])
     env_enet.Append(CPPFLAGS=["-DGODOT_ENET"])
 
     env_thirdparty = env_enet.Clone()