diff --git a/fast-import.c b/fast-import.c
index 726f5ba7d..55ffae4fa 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1058,7 +1058,7 @@ static void load_tree(struct tree_entry *root)
 		struct tree_entry *e = new_tree_entry();
 
 		if (t->entry_count == t->entry_capacity)
-			root->tree = t = grow_tree_content(t, 8);
+			root->tree = t = grow_tree_content(t, t->entry_count);
 		t->entries[t->entry_count++] = e;
 
 		e->tree = NULL;
@@ -1066,7 +1066,7 @@ static void load_tree(struct tree_entry *root)
 		if (!c)
 			die("Corrupt mode in %s", sha1_to_hex(sha1));
 		e->versions[0].mode = e->versions[1].mode;
-		e->name = to_atom(c, (unsigned short)strlen(c));
+		e->name = to_atom(c, strlen(c));
 		c += e->name->str_len + 1;
 		hashcpy(e->versions[0].sha1, (unsigned char*)c);
 		hashcpy(e->versions[1].sha1, (unsigned char*)c);
@@ -1225,9 +1225,9 @@ static int tree_content_set(
 	}
 
 	if (t->entry_count == t->entry_capacity)
-		root->tree = t = grow_tree_content(t, 8);
+		root->tree = t = grow_tree_content(t, t->entry_count);
 	e = new_tree_entry();
-	e->name = to_atom(p, (unsigned short)n);
+	e->name = to_atom(p, n);
 	e->versions[0].mode = 0;
 	hashclr(e->versions[0].sha1);
 	t->entries[t->entry_count++] = e;
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 03f2f8f34..8e958da53 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -501,4 +501,54 @@ test_expect_success \
     'test `git-rev-parse --verify branch^1` \
 		= `git-rev-parse --verify K^1`'
 
+###
+### series L
+###
+
+cat >input <<INPUT_END
+blob
+mark :1
+data <<EOF
+some data
+EOF
+
+blob
+mark :2
+data <<EOF
+other data
+EOF
+
+commit refs/heads/L
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+create L
+COMMIT
+
+M 644 :1 b.
+M 644 :1 b/other
+M 644 :1 ba
+
+commit refs/heads/L
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+update L
+COMMIT
+
+M 644 :2 b.
+M 644 :2 b/other
+M 644 :2 ba
+INPUT_END
+
+cat >expect <<EXPECT_END
+:100644 100644 4268632... 55d3a52... M	b.
+:040000 040000 0ae5cac... 443c768... M	b
+:100644 100644 4268632... 55d3a52... M	ba
+EXPECT_END
+
+test_expect_success \
+    'L: verify internal tree sorting' \
+	'git-fast-import <input &&
+	 git-diff --raw L^ L >output &&
+	 git diff expect output'
+
 test_done