diff --git a/Applications/Utils/ModelPreparation/PartitionMesh/PartitionMesh.cpp b/Applications/Utils/ModelPreparation/PartitionMesh/PartitionMesh.cpp
index 92dd52597d67db982f24b934fe090e53b1a517f5..d8af711b75c1b83b1fa71d3b761e4a1afb687ac3 100644
--- a/Applications/Utils/ModelPreparation/PartitionMesh/PartitionMesh.cpp
+++ b/Applications/Utils/ModelPreparation/PartitionMesh/PartitionMesh.cpp
@@ -14,7 +14,7 @@
 
 #include <tclap/CmdLine.h>
 
-#ifdef _MSC_VER
+#ifdef WIN32
 #include <windows.h>
 #else
 #include <climits>
diff --git a/BaseLib/RunTime.h b/BaseLib/RunTime.h
index 7cd89ef0256a97ab1d07b5995cd132fd10d2dd69..23b20805c1be9a4c7c133705cbd25e21b7affa6e 100644
--- a/BaseLib/RunTime.h
+++ b/BaseLib/RunTime.h
@@ -19,7 +19,7 @@
 #if defined(USE_MPI)
 #include <mpi.h>
 #else
-#ifndef _MSC_VER
+#ifndef WIN32
 #include <sys/time.h>
 #else
 #include <windows.h>