diff --git a/eo/src/utils/eoLogger.cpp b/eo/src/utils/eoLogger.cpp
index a0aa36e5..a729d0cf 100644
--- a/eo/src/utils/eoLogger.cpp
+++ b/eo/src/utils/eoLogger.cpp
@@ -26,7 +26,12 @@ Authors:
 
 */
 
+#ifdef _INTERIX
+#include <io.h>
+#else // _INTERIX
 #include <unistd.h>
+#endif // ! _INTERIX
+
 #include <fcntl.h>
 #include <cstdlib>
 #include <cstdio> // used to define EOF