diff --git a/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_telemetry_decoder_gs.cc b/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_telemetry_decoder_gs.cc
index fedef7456..60b83efc8 100644
--- a/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_telemetry_decoder_gs.cc
+++ b/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_telemetry_decoder_gs.cc
@@ -512,7 +512,7 @@ void galileo_telemetry_decoder_gs::decode_INAV_word(float *page_part_symbols, in
         {
             const std::shared_ptr<OSNMA_msg> tmp_obj = std::make_shared<OSNMA_msg>(d_inav_nav.get_osnma_msg());
             this->message_port_pub(pmt::mp("OSNMA_from_TLM"), pmt::make_any(tmp_obj));
-            uint8_t nma_status = (tmp_obj->hkroot[0] & 0b11000000) >> 6;
+            uint8_t nma_status = (tmp_obj->hkroot[0] & 0xC0) >> 6;
             std::string nma_status_string;
             if (nma_status == 0)
                 {