diff --git a/.github/workflows/mypy-check.yaml b/.github/workflows/mypy-check.yaml
index 5166fe8..03d3426 100644
--- a/.github/workflows/mypy-check.yaml
+++ b/.github/workflows/mypy-check.yaml
@@ -34,4 +34,4 @@ jobs:
 
     - name: Run mypy
       run: |
-        mypy cells.py config.py configure.py documentation.py git_utils.py markdown_utils.py project.py rom.py shuttle.py --check-untyped-defs
+        mypy cells.py config.py configure.py documentation.py git_utils.py markdown_utils.py project.py project_info.py rom.py shuttle.py --check-untyped-defs
diff --git a/project.py b/project.py
index c6decbd..11766e5 100644
--- a/project.py
+++ b/project.py
@@ -105,7 +105,7 @@ class Project:
         yaml_path = os.path.join(self.local_dir, "info.yaml")
         try:
             with open(yaml_path) as fh:
-                self.info = ProjectInfo(yaml.safe_load(fh))
+                self.info = ProjectInfo(yaml.safe_load(fh), self.get_tile_sizes())
         except FileNotFoundError:
             logging.error(
                 f"yaml file not found for {self} - do you need to --clone the project repos?"
diff --git a/project_info.py b/project_info.py
index 3e8e494..89735ec 100644
--- a/project_info.py
+++ b/project_info.py
@@ -1,7 +1,5 @@
 from typing import Any, Dict, List, Optional
 
-from tile_sizes import tile_sizes
-
 YAML_VERSION = 6
 
 
@@ -46,7 +44,7 @@ class ProjectInfo:
     top_module: str
     source_files: List[str]
 
-    def __init__(self, yaml_data: Dict[str, Any]):
+    def __init__(self, yaml_data: Dict[str, Any], tile_sizes: Dict[str, str]):
         # Validate Version
         yaml_version = yaml_data.get("yaml_version")
         if yaml_version is None:
diff --git a/tile_sizes.py b/tile_sizes.py
deleted file mode 100644
index c59a350..0000000
--- a/tile_sizes.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from os.path import dirname, join, realpath
-from typing import Dict
-
-import yaml
-
-with open(join(dirname(realpath(__file__)), "tile_sizes.yaml")) as fh:
-    tile_sizes: Dict[str, str] = yaml.safe_load(fh)