diff --git a/soltools/cpp/_include.c b/soltools/cpp/_include.c
index 40ff092dd82c..7a9044b91194 100644
--- a/soltools/cpp/_include.c
+++ b/soltools/cpp/_include.c
@@ -31,7 +31,7 @@
 #include <string.h>
 #include <fcntl.h>
 
-#if defined(__IBMC__) || defined(__EMX__)
+#if defined(__IBMC__) || defined(__EMX__) || defined(_MSC_VER)
 #   include <fcntl.h>
 #   define PATH_MAX _MAX_PATH
 #endif
diff --git a/soltools/cpp/_macro.c b/soltools/cpp/_macro.c
index 251a1f63dfff..b86af1022dd3 100644
--- a/soltools/cpp/_macro.c
+++ b/soltools/cpp/_macro.c
@@ -23,7 +23,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#if defined(__IBMC__) || defined(__EMX__)
+#if defined(__IBMC__) || defined(__EMX__) || defined(_MSC_VER)
 #   define PATH_MAX _MAX_PATH
 #endif
 #include <limits.h>