1 files changed, 1 insertions, 1 deletions
diff --git a/io.c b/io.c
index d5bd2fc84f..c8c13f85ea 100644
--- a/io.c
+++ b/io.c
@@ -8586,7 +8586,7 @@ do_io_advise(rb_io_t *fptr, VALUE advice, off_t offset, off_t len)
     ias.len    = len;
 
     rv = (int)rb_thread_io_blocking_region(io_advise_internal, &ias, fptr->fd);
-    if (rv) {
+    if (rv && rv != ENOSYS) {
 	/* posix_fadvise(2) doesn't set errno. On success it returns 0; otherwise
 	   it returns the error code. */
 	VALUE message = rb_sprintf("%"PRIsVALUE" "