diff --git a/src/add-ons/kernel/network/protocols/unix/UnixFifo.cpp b/src/add-ons/kernel/network/protocols/unix/UnixFifo.cpp
index 84b4db25ab..49691617ac 100644
--- a/src/add-ons/kernel/network/protocols/unix/UnixFifo.cpp
+++ b/src/add-ons/kernel/network/protocols/unix/UnixFifo.cpp
@@ -77,9 +77,9 @@ UnixRequest::GetCurrentChunk(void*& data, size_t& size)
 
 
 void
-UnixRequest::SetAncillaryData(ancillary_data_container* data)
+UnixRequest::UnsetAncillaryData()
 {
-	fAncillaryData = data;
+	fAncillaryData = NULL;
 }
 
 
@@ -213,6 +213,7 @@ UnixBufferQueue::Read(UnixRequest& request)
 				while (entry != NULL && offsetDelta > entry->offset) {
 					fAncillaryData.RemoveHead();
 					offsetDelta -= entry->offset;
+					gStackModule->delete_ancillary_data_container(entry->data);
 					delete entry;
 
 					entry = fAncillaryData.Head();
@@ -296,7 +297,7 @@ UnixBufferQueue::Write(UnixRequest& request)
 		if (ancillaryEntry != NULL) {
 			fAncillaryData.Add(ancillaryEntry);
 			ancillaryEntryDeleter.Detach();
-			request.SetAncillaryData(NULL);
+			request.UnsetAncillaryData();
 			ancillaryEntry = NULL;
 		}
 
diff --git a/src/add-ons/kernel/network/protocols/unix/UnixFifo.h b/src/add-ons/kernel/network/protocols/unix/UnixFifo.h
index 89345e9f22..eb0be23277 100644
--- a/src/add-ons/kernel/network/protocols/unix/UnixFifo.h
+++ b/src/add-ons/kernel/network/protocols/unix/UnixFifo.h
@@ -47,8 +47,8 @@ public:
 	bool GetCurrentChunk(void*& data, size_t& size);
 
 	ancillary_data_container* AncillaryData() const	 { return fAncillaryData; }
-	void SetAncillaryData(ancillary_data_container* data);
 	void AddAncillaryData(ancillary_data_container* data);
+	void UnsetAncillaryData();
 
 	struct sockaddr_storage* Address() const	{ return fAddress; }