diff --git a/debian/templates/koha-conf-site.xml.in b/debian/templates/koha-conf-site.xml.in
index afc23a98cc..2c54b885b9 100644
--- a/debian/templates/koha-conf-site.xml.in
+++ b/debian/templates/koha-conf-site.xml.in
@@ -409,12 +409,16 @@ __END_SRU_PUBLICSERVER__
  <!-- Encryption key for crypted password or sensitive data -->
  <encryption_key>__ENCRYPTION_KEY__</encryption_key>
 
- <!-- flag for development purposes
-      dev_install is used to adjust some paths specific to dev installations
-      strict_sql_modes should not be used in a production environment
+ <!-- flags for development purposes
+      git_install is used to adjust some paths specific to git installations (fka dev_install)
+      test_system is used to differentiate production from test systems (see for example koha-plack) -->
+ <git_install>0</git_install>
+ <test_system>0</test_system>
+
+ <!-- strict_sql_modes should not be used in a production environment
       developers use it to catch bugs related to strict SQL modes -->
- <dev_install>0</dev_install>
  <strict_sql_modes>0</strict_sql_modes>
+
  <plugins_restricted>1</plugins_restricted>
  <plugins_restart>1</plugins_restart>
  <plugin_repos>
diff --git a/etc/koha-conf.xml b/etc/koha-conf.xml
index 33768161a2..5141a84df6 100644
--- a/etc/koha-conf.xml
+++ b/etc/koha-conf.xml
@@ -228,12 +228,16 @@
  <!-- Encryption key for crypted password or sensitive data -->
  <encryption_key>__ENCRYPTION_KEY__</encryption_key>
 
- <!-- flag for development purposes
-      dev_install is used to adjust some paths specific to dev installations
-      strict_sql_modes should not be used in a production environment
+ <!-- flags for development purposes
+      git_install is used to adjust some paths specific to git installations (fka dev_install)
+      test_system is used to differentiate production from test systems (see for example koha-plack) -->
+ <git_install>0</git_install>
+ <test_system>0</test_system>
+
+ <!-- strict_sql_modes should not be used in a production environment
       developers use it to catch bugs related to strict SQL modes -->
- <dev_install>0</dev_install>
  <strict_sql_modes>0</strict_sql_modes>
+
  <plugins_restricted>1</plugins_restricted>
  <plugins_restart>1</plugins_restart>
  <plugin_repos>