1 files changed, 1 insertions, 1 deletions
diff --git a/test/mtime.c b/test/mtime.c
index 4dc5957..252eebf 100644
--- a/test/mtime.c
+++ b/test/mtime.c
@@ -110,7 +110,7 @@ main(void)
         HDputs("    cannot be queried on this system.  See H5O_mtime_decode().");
         return 0;
     }
-    else if (HDfabs(HDdifftime(now, oi1.ctime)) > 60.0) {
+    else if (fabs(HDdifftime(now, oi1.ctime)) > 60.0) {
         H5_FAILED();
         tm = HDlocaltime(&(oi1.ctime));
         HDstrftime((char *)buf1, sizeof buf1, "%Y-%m-%d %H:%M:%S", tm);