diff --git a/.config/i3blocks/wifi b/.config/i3blocks/wifi
index 6013735..9852cb5 100755
--- a/.config/i3blocks/wifi
+++ b/.config/i3blocks/wifi
@@ -19,4 +19,4 @@ network=$(iwgetid -r)
 printf "\uf9a1 <span color=\"#8FAAFC\">%s</span> <span color=\"#50fa7b\">(%s)</span>" ${network} ${ip}
 
 # On click copy IP
-[ -n "${BLOCK_BUTTON}" ] && echo -n "${ip}" | tr -d '\n' | xclip -selection c
+[ -n "${BLOCK_BUTTON:-}" ] && echo -n "${ip}" | tr -d '\n' | xclip -selection c