diff --git a/stack/erp5/buildout.cfg b/stack/erp5/buildout.cfg
index 051ff938d30b9b750b712b0ab5a370e838fad27b..b09250b0e13fe21ab79895748811c740edb664c7 100644
--- a/stack/erp5/buildout.cfg
+++ b/stack/erp5/buildout.cfg
@@ -233,7 +233,7 @@ recipe = slapos.recipe.template:jinja2
 # XXX: "template.cfg" is hardcoded in instanciation recipe
 rendered = ${buildout:directory}/template.cfg
 template = ${:_profile_base_location_}/instance.cfg.in
-md5sum = 98a4edfb18cfd810ea570f56d502a2cc
+md5sum = fdaaac449c92dcd68f0434b244d579f2
 mode = 640
 context =
     key mariadb_link_binary template-mariadb:link-binary
diff --git a/stack/erp5/instance.cfg.in b/stack/erp5/instance.cfg.in
index b769852f4a2c605c7e32a1248102330ffc5d196a..db4de8d95bd4e366bb14adbca23e992a0136b27c 100644
--- a/stack/erp5/instance.cfg.in
+++ b/stack/erp5/instance.cfg.in
@@ -74,10 +74,13 @@ filename = instance-erp5.cfg
 extra-context =
     key jupyter_enable_default dynamic-template-erp5-parameters:jupyter-enable-default
     key local_bt5_repository dynamic-template-erp5-parameters:local-bt5-repository
+    key openssl_location :openssl-location
     import urlparse urlparse
 import-list =
     rawfile root_common {{ root_common }}
 
+openssl-location = {{ openssl_location }}
+
 [dynamic-template-balancer-parameters]
 apache = {{ apache_location }}
 openssl = {{ openssl_location }}