script/public-inbox-index | 2 +-

diff --git a/script/public-inbox-index b/script/public-inbox-index
index 2a7a524b34abee1765c3adc9288b64cf29dac78e..e487e3fe327f69080e29996bb934a3cd219f46f8 100755
--- a/script/public-inbox-index
+++ b/script/public-inbox-index
@@ -109,7 +109,7 @@ 			if ($jobs == 0) {
 				$v2w->{parallel} = 0;
 			} else {
 				my $n = $v2w->{partitions};
-				if ($jobs != $n) {
+				if ($jobs != ($n + 1)) {
 					warn
 "Unable to respect --jobs=$jobs, inbox was created with $n partitions\n";
 				}