diff --git a/firmware/baseband/proc_pocsag.hpp b/firmware/baseband/proc_pocsag.hpp
index 2f907b5e..b437aac8 100644
--- a/firmware/baseband/proc_pocsag.hpp
+++ b/firmware/baseband/proc_pocsag.hpp
@@ -95,7 +95,7 @@ private:
 	bool configured = false;
 	rx_states rx_state { WAITING };
 	pocsag::BitRate bitrate { pocsag::BitRate::FSK1200 };
-	bool phase;
+	bool phase = false ;
 	uint32_t codeword_count { 0 };
 	pocsag::POCSAGPacket packet { };
 	
diff --git a/firmware/common/pocsag_packet.hpp b/firmware/common/pocsag_packet.hpp
index 39a71060..53f1ada8 100644
--- a/firmware/common/pocsag_packet.hpp
+++ b/firmware/common/pocsag_packet.hpp
@@ -87,7 +87,7 @@ public:
 private:
 	BitRate bitrate_ { UNKNOWN };
 	PacketFlag flag_ { NORMAL };
-	std::array <uint32_t, 16> codewords;
+	std::array <uint32_t, 16> codewords { 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0  };
 	Timestamp timestamp_ { };
 };