diff --git a/libsrc/common/_fdesc.s b/libsrc/common/_fdesc.s
index a2cf747ce..403af4b42 100644
--- a/libsrc/common/_fdesc.s
+++ b/libsrc/common/_fdesc.s
@@ -8,6 +8,7 @@
        	.export		__fdesc
 	.import		return0
 
+        .include        "stdio.inc"
         .include        "_file.inc"
 
 .proc   __fdesc