diff --git a/install/alternc.install b/install/alternc.install
index 75bc0d0f..13a23ea5 100644
--- a/install/alternc.install
+++ b/install/alternc.install
@@ -180,7 +180,7 @@ touch /var/run/alternc/refresh_slave
 touch /var/alternc/apacheconf/override_php.conf
 # Enable vhost_alias apache module at the right place (ie: BEFORE mod_alias, but apache knows this ... )
 apache-modconf apache enable mod_vhost_alias quiet </dev/null || true
-#apache-modconf apache enable `dpkg -l libapache-mod-php*|grep ii | cut -f 3 -d ' '|cut -b 11-18 ` quiet </dev/null || true
+apache-modconf apache enable `dpkg -l libapache-mod-php*|grep ii | cut -f 3 -d ' '|cut -b 11-18|sed -e 's/-/_/'` quiet </dev/null || true
 
 # Copy postfix *_checks if they do not exist
 for file in body_checks header_checks; do