diff --git a/functions/fish_prompt.fish b/functions/fish_prompt.fish
index a85fe41..52ef9cd 100644
--- a/functions/fish_prompt.fish
+++ b/functions/fish_prompt.fish
@@ -50,7 +50,7 @@ function fish_prompt
         set_color green
     else if test "$CURRENT_IP" "=" "(:0)"
         set_color brgreen
-    else if string match --regex '\(.+\)' "$CURRENT_IP"
+    else if string match --regex --quiet '\(.+\)' "$CURRENT_IP" > /dev/null
         set_color cyan
     else
         set_color green