diff --git a/defaults/main.yml b/defaults/main.yml
index 63045fb..95db049 100755
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -42,7 +42,7 @@ borgmatic_commands:
     run:
       - echo "Something went wrong!"
 
-borgmatic_databases: []
+borgmatic_databases: {}
 
 borgmatic_checks:
   - name: repository