diff --git a/src/ccallsign.cpp b/src/ccallsign.cpp
index adaa78d..77f5a58 100644
--- a/src/ccallsign.cpp
+++ b/src/ccallsign.cpp
@@ -338,7 +338,7 @@ CCallsign::operator const char *() const
 	// module
 	if ( HasModule() )
 	{
-		m_sz[sizeof(m_Callsign) - 1] = m_Module;
+		m_sz[sizeof(m_Callsign)] = m_Module;
 	}
 	// suffix
 	if ( HasSuffix() )
diff --git a/src/cdmrmmdvmprotocol.cpp b/src/cdmrmmdvmprotocol.cpp
index 008ff7a..1a12605 100644
--- a/src/cdmrmmdvmprotocol.cpp
+++ b/src/cdmrmmdvmprotocol.cpp
@@ -504,7 +504,7 @@ bool CDmrmmdvmProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *c
 		valid = callsign->IsValid();
 		if ( !valid)
 		{
-			std::cout << "Invalid callsign in DMRmmdvm RPTL packet from IP: " << Ip << " CS:" << callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
+			std::cout << "Invalid callsign in DMRmmdvm RPTL packet from IP: " << Ip << " CS:" << *callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
 		}
 	}
 	return valid;
@@ -523,7 +523,7 @@ bool CDmrmmdvmProtocol::IsValidAuthenticationPacket(const CBuffer &Buffer, CCall
 		valid = callsign->IsValid();
 		if ( !valid)
 		{
-			std::cout << "Invalid callsign in DMRmmdvm RPTK packet from IP: " << Ip << " CS:" << callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
+			std::cout << "Invalid callsign in DMRmmdvm RPTK packet from IP: " << Ip << " CS:" << *callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
 		}
 
 	}
@@ -558,7 +558,7 @@ bool CDmrmmdvmProtocol::IsValidConfigPacket(const CBuffer &Buffer, CCallsign *ca
 		valid = callsign->IsValid();
 		if ( !valid)
 		{
-			std::cout << "Invalid callsign in DMRmmdvm RPTC packet from IP: " << Ip << " CS:" << callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
+			std::cout << "Invalid callsign in DMRmmdvm RPTC packet from IP: " << Ip << " CS:" << *callsign << " DMRID:" << callsign->GetDmrid() << std::endl;
 		}
 
 	}
diff --git a/src/cdmrplusprotocol.cpp b/src/cdmrplusprotocol.cpp
index 88ec6b9..54e7c9c 100644
--- a/src/cdmrplusprotocol.cpp
+++ b/src/cdmrplusprotocol.cpp
@@ -386,7 +386,7 @@ bool CDmrplusProtocol::IsValidConnectPacket(const CBuffer &Buffer, CCallsign *ca
 		valid = (callsign->IsValid() && (std::isupper(*reflectormodule) || (*reflectormodule == ' ')) );
 		if ( !valid)
 		{
-			std::cout << "Invalid callsign in DMR+ connect packet from IP: " << Ip << " CS:" << callsign << " DMRID:" << callsign->GetDmrid() << " ReflectorModule:" << *reflectormodule << std::endl;
+			std::cout << "Invalid callsign in DMR+ connect packet from IP: " << Ip << " CS:" << *callsign << " DMRID:" << callsign->GetDmrid() << " ReflectorModule:" << *reflectormodule << std::endl;
 		}
 	}
 	return valid;