diff --git a/src/widgets.zsh b/src/widgets.zsh
index aa3f248..8710c02 100644
--- a/src/widgets.zsh
+++ b/src/widgets.zsh
@@ -39,7 +39,7 @@ _zsh_autosuggest_clear() {
 _zsh_autosuggest_modify() {
 	local -i retval
 
-	# Only added to zsh very recently
+	# Only available in zsh >= 5.4
 	local -i KEYS_QUEUED_COUNT
 
 	# Save the contents of the buffer/postdisplay
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index 476e22b..6cbaf05 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -304,7 +304,7 @@ _zsh_autosuggest_clear() {
 _zsh_autosuggest_modify() {
 	local -i retval
 
-	# Only added to zsh very recently
+	# Only available in zsh >= 5.4
 	local -i KEYS_QUEUED_COUNT
 
 	# Save the contents of the buffer/postdisplay