diff --git a/libs/api/tracker/infrastructure/src/lib/mongo/automations.repository.ts b/libs/api/tracker/infrastructure/src/lib/mongo/automations.repository.ts
index 56f1a9c..f97af80 100644
--- a/libs/api/tracker/infrastructure/src/lib/mongo/automations.repository.ts
+++ b/libs/api/tracker/infrastructure/src/lib/mongo/automations.repository.ts
@@ -30,21 +30,21 @@ export class MongoAutomationsRepository extends AutomationsRepository {
       .find({ projectId })
       .sort({ createdAt: 1 })
       .lean<AutomationDoc[]>();
-    return docs.map((doc) => fromDoc(doc) as Automation);
+    return docs.map(toAutomation);
   }
 
   async findActive(projectId: string): Promise<Automation[]> {
     const docs = await this.automations
       .find({ projectId, active: true })
       .lean<AutomationDoc[]>();
-    return docs.map((doc) => fromDoc(doc) as Automation);
+    return docs.map(toAutomation);
   }
 
   async findById(id: string): Promise<Automation | null> {
     const doc = await this.automations
       .findOne({ id: id })
       .lean<AutomationDoc>();
-    return doc ? (fromDoc(doc) as Automation) : null;
+    return doc ? toAutomation(doc) : null;
   }
 
   async insert({ id, ...rest }: Automation): Promise<void> {
@@ -83,3 +83,13 @@ export class MongoAutomationsRepository extends AutomationsRepository {
     );
   }
 }
+
+/**
+ * Mongo leaves empty objects out (`minimize`): a rule saved with no
+ * conditions comes back without them, and both GraphQL and the rules
+ * engine need the object.
+ */
+function toAutomation(doc: AutomationDoc): Automation {
+  const automation = fromDoc(doc) as Automation;
+  return { ...automation, conditions: automation.conditions ?? {} };
+}