diff --git a/SpaceVim.d/init.toml b/SpaceVim.d/init.toml
index a980d5f..cf3d344 100644
--- a/SpaceVim.d/init.toml
+++ b/SpaceVim.d/init.toml
@@ -76,3 +76,9 @@ name = "lang#markdown"
 
 [[layers]]
 name = "lang#go"
+
+[[layers]]
+name = "lang#c"
+
+[[layers]]
+name = "format"
diff --git a/zsh/functions.zsh b/zsh/functions.zsh
index 1784f58..c49e19e 100644
--- a/zsh/functions.zsh
+++ b/zsh/functions.zsh
@@ -51,6 +51,8 @@ function set_ss_proxy() {
 }
 function unset_proxy() {
   unset all_proxy
+  unset http_proxy
+  unset https_proxy
 }
 function post {
   curl -H "Content-Type: application/json" -X POST -d $1 $2