diff --git a/liberty/Units.cc b/liberty/Units.cc
index ecd17846..c21f24f1 100644
--- a/liberty/Units.cc
+++ b/liberty/Units.cc
@@ -17,7 +17,6 @@
 #include "Units.hh"
 
 #include <cmath> // abs
-#include <limits>
 
 #include "StringUtil.hh"
 #include "MinMax.hh"  // INF
diff --git a/parasitics/ConcreteParasitics.cc b/parasitics/ConcreteParasitics.cc
index 2ab1086a..4de6827f 100644
--- a/parasitics/ConcreteParasitics.cc
+++ b/parasitics/ConcreteParasitics.cc
@@ -16,7 +16,6 @@
 
 #include "ConcreteParasitics.hh"
 
-#include <limits>
 #include <algorithm> // max
 
 #include "Report.hh"
diff --git a/parasitics/SpefReader.cc b/parasitics/SpefReader.cc
index 476dbe86..99e4bd57 100644
--- a/parasitics/SpefReader.cc
+++ b/parasitics/SpefReader.cc
@@ -16,8 +16,6 @@
 
 #include "SpefReader.hh"
 
-#include <limits>
-
 #include "Zlib.hh"
 #include "Report.hh"
 #include "Debug.hh"