diff --git a/traceroute.cc b/traceroute.cc
index 91f4501af..7230a19a6 100644
--- a/traceroute.cc
+++ b/traceroute.cc
@@ -1207,6 +1207,34 @@ void TraceGroup::consolidateHops() {
         TraceProbes.erase(++ttl_count);
 }
 
+/* This is the function that gives the traceroute its "up and down" nature.
+   gotReply is true if we've gotten a reply from the target (finished counting
+   up). */
+void TraceGroup::nextTTL() {
+    if (gotReply) {
+        ttl--;
+    } else {
+        ttl++;
+        hopDistance++;
+    }
+}
+
+void TraceGroup::incRemaining() {
+    if (remaining < 255)
+        ++remaining;
+}
+
+void TraceGroup::decRemaining() {
+    if (remaining > 0)
+        --remaining;
+}
+
+char *TraceGroup::IPStr() {
+    struct in_addr s;
+    s.s_addr = ipdst;
+    return inet_ntoa (s);
+}
+
 u8
 TraceGroup::setState(u8 state) {
     if (state <= G_FINISH && state >= G_OK)
diff --git a/traceroute.h b/traceroute.h
index cc44324dd..52e6d9ed7 100644
--- a/traceroute.h
+++ b/traceroute.h
@@ -251,11 +251,11 @@ class TraceGroup {
     void consolidateHops ();
     /* the next ttl to send, if the destination has replied
      * the ttl is decremented, if it hasn't it is incremented */
-    void nextTTL () { if (gotReply) ttl--; else { ttl++; hopDistance++;}}
+    void nextTTL();
     /* number of probes currently waiting for replies */
-    void incRemaining () { if (remaining < 255) ++remaining; }
-    void decRemaining () { if (remaining > 0) --remaining; }
-    char *IPStr () { struct in_addr s; s.s_addr = ipdst; return inet_ntoa (s);}
+    void incRemaining();
+    void decRemaining();
+    char *IPStr();
     u8 getRemaining () { return remaining;}
     u8 getState () { return state; }
     u8 setState (u8 state);