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-rw-r--r--gr-digital/lib/header_payload_demux_impl.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/gr-digital/lib/header_payload_demux_impl.h b/gr-digital/lib/header_payload_demux_impl.h
index 0a70e7da3e..dfadfd58e6 100644
--- a/gr-digital/lib/header_payload_demux_impl.h
+++ b/gr-digital/lib/header_payload_demux_impl.h
@@ -55,6 +55,8 @@ namespace gr {
std::vector<pmt::pmt_t> d_special_tags; //!< List of special tags
std::vector<pmt::pmt_t> d_special_tags_last_value; //!< The current value of the special tags
+ static const pmt::pmt_t s_msg_port_id; //!< Message Port Id
+
// Helper functions to make the state machine more readable
//! Checks if there are enough items on the inputs and enough space on the output buffers to copy \p n_symbols symbols