diff --git a/include/misc.h b/include/misc.h
index 0e5ede0b..455eb796 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -56,24 +56,6 @@ typedef int pid_t;
 
 #define random rand
 #define srandom srand
-#ifndef S_IRUSR
-#define S_IRUSR	    _S_IREAD
-#define S_IWUSR	    _S_IWRITE
-#define S_IXUSR	    _S_IEXEC
-#define S_IRWXU	    S_IRUSR | S_IWUSR | S_IXUSR
-#endif
-#ifndef S_IRGRP
-#define S_IRGRP	    0
-#define S_IWGRP	    0
-#define S_IXGRP	    0
-#define S_IRWXG	    S_IRGRP | S_IWGRP | S_IXGRP
-#endif
-#ifndef S_IROTH
-#define S_IROTH	    0
-#define S_IWOTH	    0
-#define S_IXOTH	    0
-#define S_IRWXO	    S_IROTH | S_IWOTH | S_IXOTH
-#endif
 #endif /* _WIN32 */
 
 #ifndef S_IRWUG
diff --git a/src/lib/w32/unistd.h b/src/lib/w32/unistd.h
index fd024a0e..43c8a8d5 100644
--- a/src/lib/w32/unistd.h
+++ b/src/lib/w32/unistd.h
@@ -48,6 +48,24 @@ extern int posix_mkdir(const char *dirname, int perm);
 /*
  * posixio.c
  */
+#ifndef S_IRUSR
+#define S_IRUSR	    _S_IREAD
+#define S_IWUSR	    _S_IWRITE
+#define S_IXUSR	    _S_IEXEC
+#define S_IRWXU	    S_IRUSR | S_IWUSR | S_IXUSR
+#endif
+#ifndef S_IRGRP
+#define S_IRGRP	    0
+#define S_IWGRP	    0
+#define S_IXGRP	    0
+#define S_IRWXG	    S_IRGRP | S_IWGRP | S_IXGRP
+#endif
+#ifndef S_IROTH
+#define S_IROTH	    0
+#define S_IWOTH	    0
+#define S_IXOTH	    0
+#define S_IRWXO	    S_IROTH | S_IWOTH | S_IXOTH
+#endif
 
 typedef int socklen_t;