diff --git a/scripts/install b/scripts/install
index eb1a5eb..0f0681b 100755
--- a/scripts/install
+++ b/scripts/install
@@ -22,7 +22,7 @@ do
 done
 
 # Init virtualenv
-sudo virtualenv /usr/local/radicale
+sudo virtualenv /usr/local/radicale --system-site-packages
 sudo bash -c "source /usr/local/radicale/bin/activate && pip install radicale python-ldap"
 
 #Configuration Radicale