diff --git a/files/zsh/80-env.zsh b/files/zsh/80-env.zsh
index b754f62..b75cb29 100644
--- a/files/zsh/80-env.zsh
+++ b/files/zsh/80-env.zsh
@@ -23,7 +23,9 @@ if [ -d "$HOME/.yarn" ]; then
 fi
 
 # WSL1
-if grep -q Microsoft /proc/version; then
-    # Xming
-    export DISPLAY=:0;
+if [ -f "/proc/version" ]; then
+    if grep -q Microsoft /proc/version; then
+        # Xming
+        export DISPLAY=:0;
+    fi
 fi