diff --git a/doc/OpenSTA.odt b/doc/OpenSTA.odt
index eb707f6e..38c37ccb 100644
Binary files a/doc/OpenSTA.odt and b/doc/OpenSTA.odt differ
diff --git a/search/Sta.cc b/search/Sta.cc
index 13ca9623..04c0ef4d 100644
--- a/search/Sta.cc
+++ b/search/Sta.cc
@@ -5174,6 +5174,7 @@ instMaxSlew(const Instance *inst,
 InstanceSeq
 Sta::slowDrivers(int count)
 {
+  findDelays();
   InstanceSeq insts = network_->leafInstances();
   sort(insts, [=] (const Instance *inst1,
                    const Instance *inst2) {