diff --git a/app/admin.py b/app/admin.py
index 55be8cd..6bcd586 100644
--- a/app/admin.py
+++ b/app/admin.py
@@ -64,7 +64,7 @@ class ResourceAdmin(admin.ModelAdmin):
         }),
         ('Boolean fields', {
             'classes': ('collapse',),
-            'fields': ('gloria', 'gnomo', 'lter', 'ltser', 'miren', 'team', 'inventory'),
+            'fields': (('gloria', 'gnomo', 'lter', 'ltser', 'miren', 'team', 'inventory'),),
         }),
         ('Keywords', {
             'classes': ('collapse',),