diff --git a/lib/misc.zsh b/lib/misc.zsh
index c81dab41..3052b771 100644
--- a/lib/misc.zsh
+++ b/lib/misc.zsh
@@ -19,8 +19,8 @@ fi
 setopt long_list_jobs
 
 ## pager
-export PAGER="less"
-export LESS="-R"
+env_default PAGER 'less'
+env_default LESS '-R'
 
 ## super user alias
 alias _='sudo'