diff --git a/completion/_kubectx.zsh b/completion/_kubectx.zsh
index 3db03e24..04ef7f8d 100644
--- a/completion/_kubectx.zsh
+++ b/completion/_kubectx.zsh
@@ -10,11 +10,11 @@ if [ -f "$KUBECTX" ]; then
     # show '-' only if there's a saved previous context
     local PREV=$(cat "${KUBECTX}")
 
-    _arguments \
+    _arguments >/dev/null 2>&1 \
       "-d:*: :(${all_contexts})" \
       "(- *): :(- ${all_contexts})"
 else
-    _arguments \
+    _arguments >/dev/null 2>&1 \
       "-d:*: :(${all_contexts})" \
       "(- *): :(${all_contexts})"
 fi
diff --git a/completion/_kubens.zsh b/completion/_kubens.zsh
index e523caf7..921cd86b 100644
--- a/completion/_kubens.zsh
+++ b/completion/_kubens.zsh
@@ -1,2 +1,2 @@
 #compdef kubens kns=kubens
-_arguments "1: :(- $(kubectl get namespaces -o=jsonpath='{range .items[*].metadata.name}{@}{"\n"}{end}'))"
+_arguments >/dev/null 2>&1 "1: :(- $(kubectl get namespaces -o=jsonpath='{range .items[*].metadata.name}{@}{"\n"}{end}'))"