1 files changed, 3 insertions, 3 deletions
diff --git a/test/unregister.c b/test/unregister.c
index 383958d..be40383 100644
--- a/test/unregister.c
+++ b/test/unregister.c
@@ -68,9 +68,9 @@ const H5Z_class2_t H5Z_DUMMY[1] = {{
  *-------------------------------------------------------------------------
  */
 static size_t
-filter_dummy(unsigned int UNUSED flags, size_t UNUSED cd_nelmts,
-      const unsigned int UNUSED *cd_values, size_t nbytes,
-      size_t UNUSED *buf_size, void UNUSED **buf)
+filter_dummy(unsigned int H5_ATTR_UNUSED flags, size_t H5_ATTR_UNUSED cd_nelmts,
+      const unsigned int H5_ATTR_UNUSED *cd_values, size_t nbytes,
+      size_t H5_ATTR_UNUSED *buf_size, void H5_ATTR_UNUSED **buf)
 {
     return nbytes;
 }