diff --git a/posix/lib/psxdll/csrapi.def b/posix/lib/psxdll/csrapi.def
new file mode 100644
index 00000000000..289c7e9a20f
--- /dev/null
+++ b/posix/lib/psxdll/csrapi.def
@@ -0,0 +1,6 @@
+; $Id: csrapi.def,v 1.1 2002/03/21 22:48:38 hyperion Exp $
+
+LIBRARY NTDLL.DLL
+EXPORTS
+
+CsrClientCallServer@16
\ No newline at end of file