diff --git a/src/completion/pass.bash-completion b/src/completion/pass.bash-completion
index f7a51e94dec32e950fbd8431d115254b12867e7a..1f20f51c58cfa79fc13be99a352eff7bf06f91e6 100644
--- a/src/completion/pass.bash-completion
+++ b/src/completion/pass.bash-completion
@@ -57,7 +57,7 @@ _pass()
 {
 	COMPREPLY=()
 	local cur="${COMP_WORDS[COMP_CWORD]}"
-	local commands="init ls find show insert generate edit rm git help version"
+	local commands="init ls find grep show insert generate edit rm git help version"
 	if [[ $COMP_CWORD -gt 1 ]]; then
 		local lastarg="${COMP_WORDS[$COMP_CWORD-1]}"
 		case "${COMP_WORDS[1]}" in
diff --git a/src/completion/pass.fish-completion b/src/completion/pass.fish-completion
index d8f97e29467fd974687764ea4be8c7769ea7215e..10c9488b1a16218b71e6cf186519cf155bb92b53 100644
--- a/src/completion/pass.fish-completion
+++ b/src/completion/pass.fish-completion
@@ -108,3 +108,4 @@ complete -c $PROG -f -A -n '__fish_pass_uses_command git' -a 'pull' -d 'Pull cha
 complete -c $PROG -f -A -n '__fish_pass_uses_command git' -a 'log' -d 'View changelog'
 
 complete -c $PROG -f -A -n '__fish_pass_needs_command' -a find -d 'Command: find a password file or directory matching pattern'
+complete -c $PROG -f -A -n '__fish_pass_needs_command' -a grep -d 'Command: search inside of decrypted password files for matching pattern'
diff --git a/src/completion/pass.zsh-completion b/src/completion/pass.zsh-completion
index ca983e2034d673b6bd3e54f7ef2be509e913977c..90045f0bb7a7d28936f3a7625d3354b6ab72485e 100644
--- a/src/completion/pass.zsh-completion
+++ b/src/completion/pass.zsh-completion
@@ -78,6 +78,7 @@ _pass () {
 			"init:Initialize new password storage"
 			"ls:List passwords"
 			"find:Find password files or directories based on pattern"
+			"grep:Search inside decrypted password files for matching pattern"
 			"show:Decrypt and print a password"
 			"insert:Insert a new password"
 			"generate:Generate a new password using pwgen"