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-rw-r--r--epan/dissectors/packet-null.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/dissectors/packet-null.c b/epan/dissectors/packet-null.c
index bad3d046b5..361b74fb24 100644
--- a/epan/dissectors/packet-null.c
+++ b/epan/dissectors/packet-null.c
@@ -535,7 +535,7 @@ proto_register_null(void)
/* subdissector code */
null_dissector_table = register_dissector_table("null.type",
- "Null type", FT_UINT32, BASE_DEC);
+ "Null type", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_NOT_ALLOW_DUPLICATE);
}
void