diff --git a/pc/jsep_session_description.cc b/pc/jsep_session_description.cc
index 9de8194..ccba75b 100644
--- a/pc/jsep_session_description.cc
+++ b/pc/jsep_session_description.cc
@@ -220,7 +220,9 @@
   auto new_description = std::make_unique<JsepSessionDescription>(type_);
   new_description->session_id_ = session_id_;
   new_description->session_version_ = session_version_;
-  new_description->description_ = description_->Clone();
+  if (description_) {
+    new_description->description_ = description_->Clone();
+  }
   for (const auto& collection : candidate_collection_) {
     new_description->candidate_collection_.push_back(collection.Clone());
   }
diff --git a/pc/jsep_session_description_unittest.cc b/pc/jsep_session_description_unittest.cc
index d922a58..2202aa8 100644
--- a/pc/jsep_session_description_unittest.cc
+++ b/pc/jsep_session_description_unittest.cc
@@ -129,6 +129,12 @@
   EXPECT_EQ(jsep_desc_->session_version(), new_desc->session_version());
 }
 
+TEST_F(JsepSessionDescriptionTest, CloneRollback) {
+  auto jsep_desc = std::make_unique<JsepSessionDescription>(SdpType::kRollback);
+  auto new_desc = jsep_desc->Clone();
+  EXPECT_EQ(jsep_desc->type(), new_desc->type());
+}
+
 TEST_F(JsepSessionDescriptionTest, CloneWithCandidates) {
   cricket::Candidate candidate_v4(
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",