diff --git a/cmd/kubeadm/app/cmd/completion.go b/cmd/kubeadm/app/cmd/completion.go
index d34de7d886b..eb8a358a571 100644
--- a/cmd/kubeadm/app/cmd/completion.go
+++ b/cmd/kubeadm/app/cmd/completion.go
@@ -210,7 +210,7 @@ __kubeadm_get_comp_words_by_ref() {
 __kubeadm_filedir() {
 	local RET OLD_IFS w qw
 
-	__debug "_filedir $@ cur=$cur"
+	__kubectl_debug "_filedir $@ cur=$cur"
 	if [[ "$1" = \~* ]]; then
 		# somehow does not work. Maybe, zsh does not call this at all
 		eval echo "$1"
@@ -227,7 +227,7 @@ __kubeadm_filedir() {
 	fi
 	IFS="$OLD_IFS"
 
-	IFS="," __debug "RET=${RET[@]} len=${#RET[@]}"
+	IFS="," __kubectl_debug "RET=${RET[@]} len=${#RET[@]}"
 
 	for w in ${RET[@]}; do
 		if [[ ! "${w}" = "${cur}"* ]]; then
diff --git a/pkg/kubectl/cmd/cmd.go b/pkg/kubectl/cmd/cmd.go
index c9916a0358e..3bdd843b975 100644
--- a/pkg/kubectl/cmd/cmd.go
+++ b/pkg/kubectl/cmd/cmd.go
@@ -141,7 +141,7 @@ __kubectl_get_containers()
 {
     local template
     template="{{ range .spec.containers  }}{{ .name }} {{ end }}"
-    __debug "${FUNCNAME} nouns are ${nouns[*]}"
+    __kubectl_debug "${FUNCNAME} nouns are ${nouns[*]}"
 
     local len="${#nouns[@]}"
     if [[ ${len} -ne 1 ]]; then
diff --git a/pkg/kubectl/cmd/completion.go b/pkg/kubectl/cmd/completion.go
index aef5ff1d49f..c813ff79a0d 100644
--- a/pkg/kubectl/cmd/completion.go
+++ b/pkg/kubectl/cmd/completion.go
@@ -223,7 +223,7 @@ __kubectl_get_comp_words_by_ref() {
 __kubectl_filedir() {
 	local RET OLD_IFS w qw
 
-	__debug "_filedir $@ cur=$cur"
+	__kubectl_debug "_filedir $@ cur=$cur"
 	if [[ "$1" = \~* ]]; then
 		# somehow does not work. Maybe, zsh does not call this at all
 		eval echo "$1"
@@ -240,7 +240,7 @@ __kubectl_filedir() {
 	fi
 	IFS="$OLD_IFS"
 
-	IFS="," __debug "RET=${RET[@]} len=${#RET[@]}"
+	IFS="," __kubectl_debug "RET=${RET[@]} len=${#RET[@]}"
 
 	for w in ${RET[@]}; do
 		if [[ ! "${w}" = "${cur}"* ]]; then