diff --git a/tests/opr/time-t.c b/tests/opr/time-t.c
index d650c8fe4c..5d91b65ad2 100644
--- a/tests/opr/time-t.c
+++ b/tests/opr/time-t.c
@@ -43,7 +43,7 @@ main(int argc, char **argv)
     is_int(0, opr_time_Now(&oprTime), "opr_time_Now succeeds");
     osNow = time(NULL);
     osTime = opr_time_ToSecs(&oprTime);
-    ok(abs(osTime - osNow) < 2, "opr_time_Now returns a reasonable value");
+    ok(labs(osTime - osNow) < 2, "opr_time_Now returns a reasonable value");
 
     return 0;
 }