diff --git a/src/analyzer/protocol/dns/DNS.cc b/src/analyzer/protocol/dns/DNS.cc
index 210153c94f..027c568550 100644
--- a/src/analyzer/protocol/dns/DNS.cc
+++ b/src/analyzer/protocol/dns/DNS.cc
@@ -52,9 +52,7 @@ namespace detail {
 // since it's similar to DNS but does some things differently.
 constexpr int NETBIOS_PORT = 137;
 
-DNS_Interpreter::DNS_Interpreter(analyzer::Analyzer* arg_analyzer) {
-    analyzer = arg_analyzer;
-    first_message = true;
+DNS_Interpreter::DNS_Interpreter(analyzer::Analyzer* arg_analyzer) : analyzer(arg_analyzer) {
     is_netbios =
         ntohs(analyzer->Conn()->OrigPort()) == NETBIOS_PORT || ntohs(analyzer->Conn()->RespPort()) == NETBIOS_PORT;
 }
@@ -2185,8 +2183,6 @@ DNS_Analyzer::DNS_Analyzer(Connection* conn) : analyzer::tcp::TCP_ApplicationAna
 
 DNS_Analyzer::~DNS_Analyzer() { delete interp; }
 
-void DNS_Analyzer::Init() {}
-
 void DNS_Analyzer::Done() {
     analyzer::tcp::TCP_ApplicationAnalyzer::Done();
 
diff --git a/src/analyzer/protocol/dns/DNS.h b/src/analyzer/protocol/dns/DNS.h
index c3e6f6e571..27da813cfc 100644
--- a/src/analyzer/protocol/dns/DNS.h
+++ b/src/analyzer/protocol/dns/DNS.h
@@ -393,9 +393,9 @@ protected:
     void SendReplyOrRejectEvent(detail::DNS_MsgInfo* msg, EventHandlerPtr event, const u_char*& data, int& len,
                                 String* question_name, String* original_name);
 
-    analyzer::Analyzer* analyzer;
-    bool first_message;
-    bool is_netbios;
+    analyzer::Analyzer* analyzer = nullptr;
+    bool first_message = true;
+    bool is_netbios = false;
 };
 
 enum TCP_DNS_state : uint8_t {
@@ -438,7 +438,6 @@ public:
 
     void DeliverPacket(int len, const u_char* data, bool orig, uint64_t seq, const IP_Hdr* ip, int caplen) override;
 
-    void Init() override;
     void Done() override;
     void ConnectionClosed(analyzer::tcp::TCP_Endpoint* endpoint, analyzer::tcp::TCP_Endpoint* peer,
                           bool gen_event) override;