diff --git a/network/Network.cc b/network/Network.cc
index eac5151f..6c8d8f90 100644
--- a/network/Network.cc
+++ b/network/Network.cc
@@ -1047,8 +1047,7 @@ Network::findInstPinsHierMatching(const Instance *instance,
   while (pin_iter->hasNext()) {
     const Pin *pin = pin_iter->next();
     const char *port_name = name(port(pin));
-    string pin_name;
-    stringPrint(pin_name, "%s%c%s", inst_name.c_str(), divider_, port_name);
+    string pin_name = inst_name + divider_ + port_name;
     if (pattern->match(pin_name.c_str()))
       matches.push_back(pin);
   }
diff --git a/search/Search.i b/search/Search.i
index a5c83a20..da07b521 100644
--- a/search/Search.i
+++ b/search/Search.i
@@ -1236,7 +1236,7 @@ use_default_arrival_clock()
 void
 set_use_default_arrival_clock(bool enable)
 {
-  return Sta::sta()->setUseDefaultArrivalClock(enable);
+  Sta::sta()->setUseDefaultArrivalClock(enable);
 }
 
 ////////////////////////////////////////////////////////////////