diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index 3ff12c18f8..19d869c37c 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -19,8 +19,8 @@
 #include <cmsys/Process.h>
 #include <cmsys/RegularExpression.hxx>
 
-#include <sys/types.h>
 #include <ctype.h>
+#include <sys/types.h>
 #include <time.h>
 
 //----------------------------------------------------------------------------
diff --git a/Source/CTest/cmCTestP4.cxx b/Source/CTest/cmCTestP4.cxx
index f7c960c53b..b801cfc16c 100644
--- a/Source/CTest/cmCTestP4.cxx
+++ b/Source/CTest/cmCTestP4.cxx
@@ -17,8 +17,8 @@
 #include <cmsys/Process.h>
 #include <cmsys/RegularExpression.hxx>
 
-#include <sys/types.h>
 #include <ctype.h>
+#include <sys/types.h>
 #include <time.h>
 
 //----------------------------------------------------------------------------
diff --git a/Source/cmGeneratorExpressionEvaluationFile.h b/Source/cmGeneratorExpressionEvaluationFile.h
index f34dadc669..b8c824b6b8 100644
--- a/Source/cmGeneratorExpressionEvaluationFile.h
+++ b/Source/cmGeneratorExpressionEvaluationFile.h
@@ -14,8 +14,8 @@
 
 #include "cmGeneratorExpression.h"
 
-#include <sys/types.h>
 #include <cmsys/auto_ptr.hxx>
+#include <sys/types.h>
 
 class cmLocalGenerator;
 
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 3177a84f9c..68c1eb892c 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -42,8 +42,8 @@
   // include wincrypt.h after windows.h
 # include <wincrypt.h>
 #else
-# include <sys/types.h>
 # include <sys/time.h>
+# include <sys/types.h>
 # include <sys/wait.h>
 # include <unistd.h>
 # include <utime.h>