diff --git a/scripts/install b/scripts/install
index 32b8d3c..c16bde0 100755
--- a/scripts/install
+++ b/scripts/install
@@ -102,7 +102,7 @@ ynh_system_user_create $app
 
 ynh_app_setting_set $app final_path $final_path
 # Download, check integrity, uncompress and patch the source from app.src
-su - $app <<MCOMMANDS
+su -l $app -s /bin/bash
 cd ~
 git clone -b master https://github.com/diaspora/diaspora.git
 cd diaspora