diff --git a/src/widgets.zsh b/src/widgets.zsh
index ee1129f..6c03857 100644
--- a/src/widgets.zsh
+++ b/src/widgets.zsh
@@ -24,7 +24,7 @@ _zsh_autosuggest_modify() {
 
 	# Get a new suggestion if the buffer is not empty after modification
 	local suggestion
-	if [ $#BUFFER -gt 0 ]; then
+	if [ $#BUFFER -gt 0 -a $#BUFFER -lt 20 ]; then
 		suggestion="$(_zsh_autosuggest_suggestion "$BUFFER")"
 	fi
 
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index 4e3c62e..7a74ab0 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -242,7 +242,7 @@ _zsh_autosuggest_modify() {
 
 	# Get a new suggestion if the buffer is not empty after modification
 	local suggestion
-	if [ $#BUFFER -gt 0 ]; then
+	if [ $#BUFFER -gt 0 -a $#BUFFER -lt 20 ]; then
 		suggestion="$(_zsh_autosuggest_suggestion "$BUFFER")"
 	fi