diff --git a/td/telegram/files/FileLocation.h b/td/telegram/files/FileLocation.h
index 38a0a6730..c520b4253 100644
--- a/td/telegram/files/FileLocation.h
+++ b/td/telegram/files/FileLocation.h
@@ -923,12 +923,14 @@ struct PartialLocalFileLocationPtr {
   }
   PartialLocalFileLocationPtr &operator=(const PartialLocalFileLocationPtr &other) {
     *location_ = *other.location_;
+    return *this;
   }
   PartialLocalFileLocationPtr(PartialLocalFileLocationPtr &&other)
       : location_(make_unique<PartialLocalFileLocation>(std::move(*other.location_))) {
   }
   PartialLocalFileLocationPtr &operator=(PartialLocalFileLocationPtr &&other) {
     *location_ = std::move(*other.location_);
+    return *this;
   }
   ~PartialLocalFileLocationPtr() = default;