diff --git a/bin/tests/system/cds/checkmtime.pl b/bin/tests/system/cds/checkmtime.pl
index aba2105c03..a65938c432 100644
--- a/bin/tests/system/cds/checkmtime.pl
+++ b/bin/tests/system/cds/checkmtime.pl
@@ -13,4 +13,4 @@ my $target = shift;
 my $file = shift;
 my $mtime = time - (stat $file)[9];
 die "bad mtime $mtime"
-	unless abs($mtime - $target) < 10;
+	unless ($mtime - $target >= 0 && $mtime - $target < 60);