diff --git a/.gitignore b/.gitignore
index b4b1b7e..6dd8ef2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ build-aux/flatpak/page.kramo.Cartridges.json
 /.flatpak-builder
 /.vscode
 .DS_Store
+.prettierignore
diff --git a/cartridges/importer/steam_source.py b/cartridges/importer/steam_source.py
index 4179784..748a7ed 100644
--- a/cartridges/importer/steam_source.py
+++ b/cartridges/importer/steam_source.py
@@ -98,7 +98,8 @@ class SteamSourceIterable(SourceIterable):
             # Add official cover image
             image_path = (
                 self.source.locations.data["librarycache"]
-                / f"{appid}_library_600x900.jpg"
+                / appid
+                / "library_600x900.jpg"
             )
             additional_data = {"local_image_path": image_path, "steam_appid": appid}