diff --git a/src/fccache.c b/src/fccache.c
index 9a108a1..ddcf070 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -876,6 +876,7 @@ bail1:
 
 
 #ifdef _WIN32
+#include <direct.h>
 #define mkdir(path,mode) _mkdir(path)
 #endif