diff --git a/main.cpp b/main.cpp
index 108448b..ff8e8a2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3,8 +3,13 @@
 #include <ctype.h>
 #include <math.h>
 #include <unistd.h>
+#ifdef _WIN32
 #include <windows.h>
-#include <freeimage.h>
+#else
+#include <limits.h>
+#define MAX_PATH PATH_MAX
+#endif
+#include <FreeImage.h>
 
 #include "tim.h"
 
diff --git a/tim.h b/tim.h
index 87dc20d..9f9b8f4 100644
--- a/tim.h
+++ b/tim.h
@@ -2,7 +2,9 @@
 #define _TIM_H
 
 #include <stdio.h>
+#ifdef _WIN32
 #include <windows.h>
+#endif
 #include <math.h>
 
 #define TIM_OUTPUT_CLUT4	0