diff --git a/epan/dissectors/packet-tcp.c b/epan/dissectors/packet-tcp.c

index e9af5f8..d994233 100644

--- a/epan/dissectors/packet-tcp.c

+++ b/epan/dissectors/packet-tcp.c

@@ -1922,6 +1922,7 @@ again:

                  * being a new higher-level PDU that also

                  * needs desegmentation).

                  */

+                remove_last_data_source(pinfo);

                 fragment_set_partial_reassembly(&tcp_reassembly_table,

                                                 pinfo, msp->first_frame, NULL);

diff --git a/epan/packet.c b/epan/packet.c

index 44b953f..509fb22 100644

--- a/epan/packet.c

+++ b/epan/packet.c

@@ -237,9 +237,24 @@ add_new_data_source(packet_info *pinfo, tvbuff_t *tvb, const char *name)

 	src = (struct data_source *)g_malloc(sizeof(struct data_source));

 	src->tvb = tvb;

 	src->name = g_strdup(name);

+	/* This could end up slow, but we should never have that many data

+	 * sources so it probably doesn't matter */

 	pinfo->data_src = g_slist_append(pinfo->data_src, src);

 }

+void

+remove_last_data_source(packet_info *pinfo)

+{

+	struct data_source *src;

+	GSList *last;

+

+	last = g_slist_last(pinfo->data_src);

+	src = (struct data_source *)last->data;

+	pinfo->data_src = g_slist_delete_link(pinfo->data_src, last);

+	g_free(src->name);

+	g_slice_free(struct data_source, src);

+}

+

 const char*

 get_data_source_name(const struct data_source *src)

 {

diff --git a/epan/packet.h b/epan/packet.h

index e1a195b..f90199d 100644

--- a/epan/packet.h

+++ b/epan/packet.h

@@ -408,6 +408,8 @@ final_registration_all_protocols(void);

  */

 WS_DLL_PUBLIC void add_new_data_source(packet_info *pinfo, tvbuff_t *tvb,

     const char *name);

+/* Removes the last-added data source, if it turns out it wasn't needed */

+WS_DLL_PUBLIC void remove_last_data_source(packet_info *pinfo);

 /*