diff --git a/zshrc b/zshrc
index 7153371..11c3787 100644
--- a/zshrc
+++ b/zshrc
@@ -316,7 +316,11 @@ function tasec() {
 alias deal="debops"
 ## Limit to a define host/group
 function deho() {
-	debops -l "${ANS_HOST}"
+	if [ ${ANS_HOST} ]; then
+		debops -l "${ANS_HOST}"
+	else
+		printf '%b' "${MAGENTA}ANS_HOST${RESET} vars is ${REDB}not${RESET} define !\n"
+	fi
 }
 ## Limit to a define host/group and to a role
 function dero() {