diff --git a/include/HsUnixCompat.h b/include/HsUnixCompat.h
--- a/include/HsUnixCompat.h
+++ b/include/HsUnixCompat.h
@@ -1,3 +1,4 @@
+#include "HsUnixConfig.h"
 #include <sys/types.h>
 
 unsigned int unix_major(dev_t dev);
diff --git a/unix-compat.cabal b/unix-compat.cabal
--- a/unix-compat.cabal
+++ b/unix-compat.cabal
@@ -1,5 +1,5 @@
 name:           unix-compat
-version:        0.2.1.2
+version:        0.2.1.3
 synopsis:       Portable POSIX-compatibility layer.
 description:    This package provides portable implementations of parts
                 of the unix package. This package re-exports the unix