diff --git a/builtin/repack.c b/builtin/repack.c
index bcf280b10d..4ca2f647b4 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -351,7 +351,7 @@ static void split_pack_geometry(struct pack_geometry *geometry, int factor)
 	uint32_t split;
 	off_t total_size = 0;
 
-	if (geometry->pack_nr <= 1) {
+	if (!geometry->pack_nr) {
 		geometry->split = geometry->pack_nr;
 		return;
 	}
diff --git a/t/t7703-repack-geometric.sh b/t/t7703-repack-geometric.sh
index 96917fc163..4a1952a054 100755
--- a/t/t7703-repack-geometric.sh
+++ b/t/t7703-repack-geometric.sh
@@ -20,6 +20,21 @@ test_expect_success '--geometric with no packs' '
 	)
 '
 
+test_expect_success '--geometric with one pack' '
+	git init geometric &&
+	test_when_finished "rm -fr geometric" &&
+	(
+		cd geometric &&
+
+		test_commit "base" &&
+		git repack -d &&
+
+		git repack --geometric 2 >out &&
+
+		test_i18ngrep "Nothing new to pack" out
+	)
+'
+
 test_expect_success '--geometric with an intact progression' '
 	git init geometric &&
 	test_when_finished "rm -fr geometric" &&