diff --git a/portlist.cc b/portlist.cc
index 78388cfa2..7cfeedb61 100644
--- a/portlist.cc
+++ b/portlist.cc
@@ -120,7 +120,7 @@ Port::Port() {
   owner = NULL;
   rpc_status = RPC_STATUS_UNTESTED;
   rpc_program = rpc_lowver = rpc_highver = 0;
-  state = confidence = 0;
+  state = 0;
   next = NULL;
   serviceprobe_results = PROBESTATE_INITIAL;
   serviceprobe_service = NULL;
diff --git a/portlist.h b/portlist.h
index 46468927c..a77068e2e 100644
--- a/portlist.h
+++ b/portlist.h
@@ -224,7 +224,6 @@ class Port {
   u8 proto;
   char *owner;
   int state; 
-  int confidence; /* How sure are we about the state? */
   state_reason_t reason;
 
 #ifndef NOLUA