diff --git a/files/zsh/20-function.zsh b/files/zsh/20-function.zsh
index bed275d..a3e1612 100644
--- a/files/zsh/20-function.zsh
+++ b/files/zsh/20-function.zsh
@@ -51,6 +51,15 @@ __zsh_get_ip() {
     __zsh_get_ipv6
 }
 
+__zsh_clash_env_unset() {
+    unset HTTP_PROXY
+    unset HTTPS_PROXY
+    unset ALL_PROXY
+    unset http_proxy
+    unset https_proxy
+    unset all_proxy
+}
+
 __zsh_history_remove() {
     if [ -z "$1" ]; then
         echo "Please specify a keyword to remove"