diff --git a/aider/repomap.py b/aider/repomap.py
index 713424a3b..bfb5d1038 100644
--- a/aider/repomap.py
+++ b/aider/repomap.py
@@ -29,11 +29,15 @@ def to_tree(tags):
     for tag in tags:
         tag = list(tag)
 
-        for i in range(len(last)):
+        for i in range(len(last) + 1):
+            if i == len(last):
+                break
             if last[i] != tag[i]:
                 break
 
         num_common = i
+        dump(repr(tag), num_common)
+
         indent = tab * num_common
         rest = tag[num_common:]
         for item in rest:
@@ -288,11 +292,6 @@ class RepoMap:
         except ZeroDivisionError:
             return []
 
-        # top_rank = sorted([(rank, node) for (node, rank) in ranked.items()], reverse=True)
-        # Print the PageRank of each node
-        # for rank, node in top_rank:
-        #    print(f"{rank:.03f} {node}")
-
         # distribute the rank from each source node, across all of its out edges
         ranked_definitions = defaultdict(float)
         for src in G.nodes:
@@ -312,6 +311,21 @@ class RepoMap:
                 continue
             ranked_tags += list(definitions.get((fname, ident), []))
 
+        rel_other_fnames_without_tags = set(
+            os.path.relpath(fname, self.root) for fname in other_fnames
+        )
+
+        fnames_already_included = set(rt[0] for rt in ranked_tags)
+
+        top_rank = sorted([(rank, node) for (node, rank) in ranked.items()], reverse=True)
+        for rank, fname in top_rank:
+            rel_other_fnames_without_tags.remove(fname)
+            if fname not in fnames_already_included:
+                ranked_tags.append((fname,))
+
+        for fname in rel_other_fnames_without_tags:
+            ranked_tags.append((fname,))
+
         return ranked_tags
 
     def get_ranked_tags_map(self, chat_fnames, other_fnames=None):
diff --git a/aider/utils.py b/aider/utils.py
index 61af34379..942d72757 100644
--- a/aider/utils.py
+++ b/aider/utils.py
@@ -99,10 +99,7 @@ def replace_most_similar_chunk(whole, part, replace):
     if max_similarity < similarity_thresh:
         return
 
-    if replace:
-        replace_lines = replace.splitlines() + [""]
-    else:
-        replace_lines = []
+    replace_lines = replace.splitlines()
 
     modified_whole = (
         whole_lines[:most_similar_chunk_start]
diff --git a/tests/test_repomap.py b/tests/test_repomap.py
index f1902acef..18c9d3c3d 100644
--- a/tests/test_repomap.py
+++ b/tests/test_repomap.py
@@ -53,6 +53,9 @@ print(obj.my_method(1, 2))
 print(my_function(3, 4))
 """
 
+        test_file3 = "test_file_pass.py"
+        file_content3 = "pass"
+
         with tempfile.TemporaryDirectory() as temp_dir:
             with open(os.path.join(temp_dir, test_file1), "w") as f:
                 f.write(file_content1)
@@ -60,8 +63,15 @@ print(my_function(3, 4))
             with open(os.path.join(temp_dir, test_file2), "w") as f:
                 f.write(file_content2)
 
+            with open(os.path.join(temp_dir, test_file3), "w") as f:
+                f.write(file_content3)
+
             repo_map = RepoMap(root=temp_dir)
-            other_files = [os.path.join(temp_dir, test_file1), os.path.join(temp_dir, test_file2)]
+            other_files = [
+                os.path.join(temp_dir, test_file1),
+                os.path.join(temp_dir, test_file2),
+                os.path.join(temp_dir, test_file3),
+            ]
             result = repo_map.get_repo_map([], other_files)
 
             # Check if the result contains the expected tags map with identifiers
@@ -69,6 +79,7 @@ print(my_function(3, 4))
             self.assertIn("MyClass", result)
             self.assertIn("my_method", result)
             self.assertIn("my_function", result)
+            self.assertIn("test_file_pass.py", result)
 
     def test_check_for_ctags_failure(self):
         with patch("subprocess.run") as mock_run: