diff --git a/src/api/gramjs/apiBuilders/chats.ts b/src/api/gramjs/apiBuilders/chats.ts
index 15ba16a38..3a214b54f 100644
--- a/src/api/gramjs/apiBuilders/chats.ts
+++ b/src/api/gramjs/apiBuilders/chats.ts
@@ -109,39 +109,36 @@ function buildApiChatRestrictions(peerEntity: GramJs.TypeUser | GramJs.TypeChat)
     };
   }
 
-  if (peerEntity instanceof GramJs.User) {
+  const restrictions = {};
+
+  if ('restricted' in peerEntity) {
     const restrictionReason = peerEntity.restricted
       ? buildApiChatRestrictionReason(peerEntity.restrictionReason)
       : undefined;
 
-    if (restrictionReason === undefined) {
-      return {
-        isRestricted: false,
-      };
+    if (restrictionReason) {
+      Object.assign(restrictions, {
+        isRestricted: true,
+        restrictionReason,
+      });
     }
+  }
 
-    return {
-      isRestricted: peerEntity.restricted,
-      restrictionReason,
-    };
-  } else if (peerEntity instanceof GramJs.Chat) {
-    return {
+  if (peerEntity instanceof GramJs.Chat) {
+    Object.assign(restrictions, {
       isNotJoined: peerEntity.left,
       isRestricted: peerEntity.kicked,
-    };
-  } else if (peerEntity instanceof GramJs.Channel) {
-    const isRestricted = peerEntity.restricted
-      && peerEntity.restrictionReason
-      && peerEntity.restrictionReason.some((reason) => reason.platform === 'all');
+    });
+  }
 
-    return {
+  if (peerEntity instanceof GramJs.Channel) {
+    Object.assign(restrictions, {
       // `left` is weirdly set to `true` on all channels never joined before
       isNotJoined: peerEntity.left,
-      isRestricted,
-      restrictionReason: buildApiChatRestrictionReason(peerEntity.restrictionReason),
-    };
+    });
   }
-  return {};
+
+  return restrictions;
 }
 
 function buildApiChatMigrationInfo(peerEntity: GramJs.TypeChat): {
diff --git a/src/config.ts b/src/config.ts
index c47a1999e..4f31f831a 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -116,7 +116,7 @@ export const CONTENT_TYPES_FOR_QUICK_UPLOAD = 'image/png,image/gif,image/jpeg,vi
 // eslint-disable-next-line max-len
 export const RE_LINK_TEMPLATE = '((ftp|https?):\\/\\/)?((www\\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6})\\b([-a-zA-Z0-9()@:%_+.~#?&/=]*)';
 export const RE_TME_LINK = /^(?:https?:\/\/)?(?:t\.me\/)([\d\w_]+)(?:\/([\d]+))?$/gm;
-export const RE_TME_INVITE_LINK = /^(?:https?:\/\/)?(?:t\.me\/joinchat\/)([\d\w_]+)?$/gm;
+export const RE_TME_INVITE_LINK = /^(?:https?:\/\/)?(?:t\.me\/joinchat\/)([\d\w_-]+)?$/gm;
 
 // MTProto constants
 export const SERVICE_NOTIFICATIONS_USER_ID = 777000;