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-rw-r--r--epan/dissectors/packet-a21.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/dissectors/packet-a21.c b/epan/dissectors/packet-a21.c
index f2da4854e4..b62efe1063 100644
--- a/epan/dissectors/packet-a21.c
+++ b/epan/dissectors/packet-a21.c
@@ -964,7 +964,7 @@ void proto_reg_handoff_a21(void)
if (!a21_prefs_initialized) {
a21_handle = create_dissector_handle(dissect_a21, proto_a21);
- gcsna_handle = find_dissector("gcsna");
+ gcsna_handle = find_dissector_add_dependency("gcsna", proto_a21);
dissector_add_uint("udp.port", a21_udp_port, a21_handle);
a21_prefs_initialized = TRUE;
} else {