diff --git a/scripts/install b/scripts/install
index 4fc97a4..6c7ab56 100644
--- a/scripts/install
+++ b/scripts/install
@@ -185,6 +185,7 @@ if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
 	ynh_permission_url --permission="main" --add_url=$sandboxdomain --auth_header=true
 	# there is a bug in core that add a slash at the end of domain in ssowat conf for uris var
 	# so we use ${sandboxdomain%/} to remove the eccessive trailing slash # it doesnt work
+	# we use jq to correct /etc/ssowat/conf.json
 	uri1=$domain
 	uri2=$sandboxdomain
 	
@@ -192,8 +193,9 @@ if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
 	cat /etc/ssowat/conf.json | jq 'del(.permissions[] | select(.label=="CryptPad") | .uris)'
 	#we write them again
 	cat /etc/ssowat/conf.json | jq --arg uri1 "$uri1" '(.permissions[] | select(.label=="CryptPad") | .uris[0]) |=$uri1'
-	cat /etc/ssowat/conf.json | jq --arg uri2 "$uri2" '(.permissions[] | select(.label=="CryptPad") | .uris[1]) |=$uri2'
-
+	cat /etc/ssowat/conf.json | jq --arg uri2 "$uri2" '(.permissions[] | select(.label=="CryptPad") | .uris[1]) |=$uri2' > /etc/ssowat/tmp.conf.json
+	rm /etc/ssowat/conf.json
+	mv /etc/ssowat/tmp.conf.json /etc/ssowat/conf.json
 fi
 
 #=================================================