diff --git a/src/strategies/match_prev_cmd.zsh b/src/strategies/match_prev_cmd.zsh
index b709783..a2a852f 100644
--- a/src/strategies/match_prev_cmd.zsh
+++ b/src/strategies/match_prev_cmd.zsh
@@ -49,6 +49,7 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
 	local prev_cmd="$(_zsh_autosuggest_escape_command "${history[$((HISTCMD-1))]}")"
 
 	# Iterate up to the first 200 history event numbers that match $prefix
+	local key
 	for key in "${(@)history_match_keys[1,200]}"; do
 		# Stop if we ran out of history
 		[[ $key -gt 1 ]] || break
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index b19cac7..08a399f 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -711,6 +711,7 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
 	local prev_cmd="$(_zsh_autosuggest_escape_command "${history[$((HISTCMD-1))]}")"
 
 	# Iterate up to the first 200 history event numbers that match $prefix
+	local key
 	for key in "${(@)history_match_keys[1,200]}"; do
 		# Stop if we ran out of history
 		[[ $key -gt 1 ]] || break