diff --git a/sympa/recipe/sympa_fix_personalization.recipe b/sympa/recipe/sympa_fix_personalization.recipe
index f74f1ea..6e3f7ec 100644
--- a/sympa/recipe/sympa_fix_personalization.recipe
+++ b/sympa/recipe/sympa_fix_personalization.recipe
@@ -27,39 +27,23 @@ function patch_message_pm {
 			/opt/miaou-bash/tools/append_or_replace '^.*qw/subject x-originating-ip message-id date x-original-to.*$' '        qw/subject x-originating-ip message-id date x-original-to x-original-from from to thread-topic content-type/' "$MESSAGE_PM"
 			FOUND=true
 		else
-			echo 'already patched!'
+			echo 'x-original-from 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'
+
+		if [[ $(grep -n '$data->{sender}  = $self->{sender};' /usr/share/sympa/lib/Sympa/Message.pm | cut -d: -f1) -ne 1540 ]]; then
+			patch /usr/share/sympa/lib/Sympa/Message.pm << EOF
+1539a1540,1541
+>     \$data->{sender}  = \$self->{sender};
+>     \$data->{gecos}   = \$self->{gecos};
+EOF
 			FOUND=true
+
 		else
-			echo 'sender and gecos already prepended!'
+			echo 'sender + gecos already patched!'
 		fi
-	else
-		echo "file: $MESSAGE_PM not found!" && exit 11
-	fi
-}
-
-## arg1=file, arg2=text, arg3='existing_line'
-function prepend_2lines_of_text_before_existing_line {
-	local file="$1"
-	local line1="$2"
-	local line2="$3"
-	local existing="$4"
 
-	[[ ! -f $file ]] && echo "file: $file not found!" && exit 20
-
-	if ! (grep "^$existing$" $file -B2 | grep -qz "$line1.*$line2.*$existing"); then
-		echo 'do prepend'
-		>&2 echo "line1=$line1"
-		>&2 echo "line2=$line2"
-		>&2 echo "existing=$existing"
-		echo sed -i "/^$existing$/s/^/$line1\n$line2\n/" $file
-		sed -i "/^$existing$/s/^/$line1\n$line2\n/" $file
 	else
-		echo 'already done!'
+		echo "file: $MESSAGE_PM not found!" && exit 11
 	fi
 }