diff --git a/firestore.rules b/firestore.rules
index 7afa9a7..65c432b 100644
--- a/firestore.rules
+++ b/firestore.rules
@@ -2,18 +2,18 @@ rules_version = '2';
 service cloud.firestore {
   match /databases/{database}/documents {
     match /session/{document=**} {
-    	allow read, write: if
-    		request.auth.uid != null;
+      allow read, write: if
+        request.auth.uid != null;
     }
-  	match /calls/{callId}/users/{document=**} {
-    	allow create: if
-      		request.auth.uid != null && request.auth.uid == request.resource.data.userUid;
+    match /calls/{callId}/users/{document=**} {
+      allow create: if
+          request.auth.uid != null && request.auth.uid == request.resource.data.userUid;
       allow read, list: if
           request.auth.uid != null;
       allow update: if
-      		request.auth.uid != null && get(/databases/$(database)/documents/calls/$(callId)).data.hostId == request.auth.uid;
+          request.auth.uid != null && get(/databases/$(database)/documents/calls/$(callId)).data.hostId == request.auth.uid;
       allow delete: if
-      		request.auth.uid != null && (get(/databases/$(database)/documents/calls/$(callId)).data.hostId == request.auth.uid || request.auth.uid == resource.data.userUid);
+          request.auth.uid != null && (get(/databases/$(database)/documents/calls/$(callId)).data.hostId == request.auth.uid || request.auth.uid == resource.data.userUid);
     }
     match /calls/{callId}/p2p-descriptions/{descriptionId} {
       allow create, update, delete: if
@@ -22,12 +22,12 @@ service cloud.firestore {
           request.auth.uid != null
     }
     match /calls/{document} {
-    	allow read: if
-      		request.auth.uid != null;
+      allow read: if
+          request.auth.uid != null;
       allow create: if
           request.auth.uid != null && request.auth.uid == request.resource.data.hostId;
-    	allow update, delete: if
-      		request.auth.uid != null && request.auth.uid == resource.data.hostId;
+      allow update, delete: if
+          request.auth.uid != null && request.auth.uid == resource.data.hostId;
     }
   }
-}
\ No newline at end of file
+}