diff --git a/src/dot1q.cpp b/src/dot1q.cpp
index 1b7a2b8..574521d 100644
--- a/src/dot1q.cpp
+++ b/src/dot1q.cpp
@@ -121,6 +121,9 @@ void Dot1Q::write_serialization(uint8_t* buffer, uint32_t total_sz, const PDU *)
             payload_type(static_cast<uint16_t>(flag));
         }
     }
+    else {
+        payload_type(0);
+    }
     stream.write(header_);
 
     // Skip inner PDU size
diff --git a/tests/src/dot1q.cpp b/tests/src/dot1q.cpp
index e6ac20c..ae8e519 100644
--- a/tests/src/dot1q.cpp
+++ b/tests/src/dot1q.cpp
@@ -93,3 +93,13 @@ TEST_F(Dot1QTest, QinQ) {
     EXPECT_EQ(10, q1.id());
     EXPECT_EQ(42, q2.id());
 }
+
+TEST_F(Dot1QTest, SerializeAfterInnerPduRemoved) {
+    EthernetII eth1 = EthernetII() / Dot1Q() / IP();
+    eth1.serialize();
+    eth1.rfind_pdu<Dot1Q>().inner_pdu(0);
+
+    PDU::serialization_type buffer = eth1.serialize();
+    EthernetII eth2(&buffer[0], buffer.size());
+    EXPECT_EQ(eth1.size(), eth2.size());
+}