diff --git a/.env.sample b/.env.sample
index 2f28e89..5d13230 100644
--- a/.env.sample
+++ b/.env.sample
@@ -13,6 +13,8 @@ MEDIAWIKI_LOGO_FILE='$wgResourceBasePath/resources/assets/wiki.png'
 
 MEDIAWIKI_IS_PRIVATE=1
 
+MEDIAWIKI_DEBUG=0
+
 ## SMTP
 #SMTP_HOST=postfix_relay_app
 #SMTP_HOST=mailu_front
diff --git a/LocalSettings.php.tmpl b/LocalSettings.php.tmpl
index 6fa14e6..3f4d1b2 100644
--- a/LocalSettings.php.tmpl
+++ b/LocalSettings.php.tmpl
@@ -174,7 +174,10 @@ $wgSimpleSAMLphp_UsernameAttribute = "{{ env "SAML_USERNAME_ATTRIBUTE" }}";
 $wgGroupPermissions['*']['autocreateaccount'] = true;
 $wgGroupPermissions['*']['createaccount'] = false;
 
+{{ if eq (env "MEDIAWIKI_DEBUG") "1" }}
 $wgDebugLogFile = "/var/log/debug-{$wgDBname}.log";
+$wgShowExceptionDetails = true;
+$wgDebugToolbar = true;
 {{ end }}
 
 {{ if eq (env "OPENID_ENABLED") "1" }}
diff --git a/compose.yml b/compose.yml
index a651724..5d50230 100644
--- a/compose.yml
+++ b/compose.yml
@@ -13,6 +13,7 @@ services:
       - MEDIAWIKI_SITENAMESPACE
       - MEDIAWIKI_LOGO_FILE
       - MEDIAWIKI_IS_PRIVATE
+      - MEDIAWIKI_DEBUG
       - SAML_ENABLED
       - OPENID_ENABLED
       - DB_HOST=db