diff --git a/contrib/bash_completion.in b/contrib/bash_completion.in
index d9e0c785..8983c92b 100644
--- a/contrib/bash_completion.in
+++ b/contrib/bash_completion.in
@@ -59,9 +59,9 @@ _makepkg() {
 _pacman_pkg() {
   _arch_compgen "$(
     if [[ $2 ]]; then
-      \pacman -$1 | \cut -d' ' -f1 | \sort -u
+      \pacman -$1 2>/dev/null | \cut -d' ' -f1 | \sort -u
     else
-      \pacman -$1
+      \pacman -$1 2>/dev/null
     fi
   )"
 }
diff --git a/contrib/zsh_completion.in b/contrib/zsh_completion.in
index 59551c58..2cfc946c 100644
--- a/contrib/zsh_completion.in
+++ b/contrib/zsh_completion.in
@@ -276,7 +276,7 @@ _pacman_completions_repositories() {
 # $cmd must be declared by calling function
 _pacman_get_command() {
 	# this is mostly nicked from _perforce
-	cmd=( "pacman" )
+	cmd=( "pacman" "2>/dev/null")
 	integer i
 	for (( i = 2; i < CURRENT - 1; i++ )); do
 		if [[ ${words[i]} = "--config" || ${words[i]} = "--root" ]]; then