diff --git a/bin/tests/system/cds/checktime.pl b/bin/tests/system/cds/checktime.pl
index 692b840adc..aa742106ba 100644
--- a/bin/tests/system/cds/checktime.pl
+++ b/bin/tests/system/cds/checktime.pl
@@ -22,4 +22,4 @@ while (<>) {
 die "missing notbefore time" unless $notbefore;
 die "missing inception time" unless $inception;
 my $delta = $inception - $notbefore;
-die "bad inception time $delta" unless abs($delta - $target) < 3;
+die "bad inception time $delta" unless abs($delta - $target) <= 3;