diff --git a/.zshenv b/.zshenv
index dd1a906..b4756a0 100644
--- a/.zshenv
+++ b/.zshenv
@@ -240,3 +240,5 @@ if [ -d /usr/local/pgsql/data/ ]
 then
 	export PGDATA=/usr/local/pgsql/data/
 fi
+
+export MAKEFLAGS="-I $HOME/include"