diff --git a/dcalc/LumpedCapDelayCalc.cc b/dcalc/LumpedCapDelayCalc.cc
index c9f2985c..6bf5db47 100644
--- a/dcalc/LumpedCapDelayCalc.cc
+++ b/dcalc/LumpedCapDelayCalc.cc
@@ -168,7 +168,7 @@ LumpedCapDelayCalc::makeResult(const LibertyLibrary *drvr_library,
   for (const auto [load_pin, load_idx] : load_pin_index_map) {
     ArcDelay wire_delay = 0.0;
     Slew load_slew = drvr_slew;
-    thresholdAdjust(load_pin, drvr_library, rf, wire_delay, drvr_slew);
+    thresholdAdjust(load_pin, drvr_library, rf, wire_delay, load_slew);
     dcalc_result.setWireDelay(load_idx, wire_delay);
     dcalc_result.setLoadSlew(load_idx, load_slew);
   }
diff --git a/liberty/LibertyReader.cc b/liberty/LibertyReader.cc
index 5d99d1f1..3164a17b 100644
--- a/liberty/LibertyReader.cc
+++ b/liberty/LibertyReader.cc
@@ -1518,8 +1518,11 @@ LibertyReader::readCapacitance(const LibertyPortSeq &ports,
       // min/max_transition
       attr_name = min_max->to_string() + "_transition";
       port_group->findAttrFloat(attr_name, limit, exists);
-      if (exists)
+      if (exists) {
+        if (min_max == MinMax::max() && limit == 0.0)
+          libWarn(1241, port_group, "max_transition is 0.0.");
         port->setSlewLimit(limit * time_scale_, min_max);
+      }
     }
 
     // Default capacitance.