diff --git a/sympa/recipe/sympa_fix_personalization.recipe b/sympa/recipe/sympa_fix_personalization.recipe
index 718fa4b..5962173 100644
--- a/sympa/recipe/sympa_fix_personalization.recipe
+++ b/sympa/recipe/sympa_fix_personalization.recipe
@@ -30,7 +30,6 @@ function patch_message_pm {
 			echo 'already patched!'
 		fi
 		message=$(prepend_2lines_of_text_before_existing_line "$MESSAGE_PM" '$data->{sender} = $self->{sender};' '$data->{gecos} = $self->{gecos};' '$data->{subject} = $self->{decoded_subject};')
-		echo $message
 		if [[ $message == 'do prepend' ]]; then
 			echo 'prepending sender and gecos in message pm'
 			FOUND=true
@@ -53,9 +52,9 @@ function prepend_2lines_of_text_before_existing_line {
 
 	if ! (grep "^$existing$" $file -B2 | grep -qz "$line1.*$line2.*$existing"); then
 		echo 'do prepend'
-		echo -e "line1=$line1"
-		echo -e "line2=$line2"
-		echo -e "existing=$existing"
+		# >&2 echo "line1=$line1"
+		# >&2 echo "line2=$line2"
+		# >&2 echo "existing=$existing"
 		sed -i "/^$existing$/s/^/$line1\n$line2\n/" $file
 	else
 		echo 'already done!'