diff --git a/tools/retro-library/generate_game_lists.py b/tools/retro-library/generate_game_lists.py
index 3f41dc1d0..fe33e5f63 100644
--- a/tools/retro-library/generate_game_lists.py
+++ b/tools/retro-library/generate_game_lists.py
@@ -127,7 +127,7 @@ def collect_game_data(system_dir, extensions):
                     name_cleaned = re.sub(r'_+', '_', name_cleaned)
                     name_cleaned = name_cleaned.replace('+', '').replace('&', '').replace('!', '').replace("'", '').replace('.', '')
                     name_cleaned_pegasus = name.replace(',_', ',')
-
+                    name_cleaned = name_cleaned.lower()
                     # Calculate the ROM hash
                     rom_hash = calculate_hash(file_path)
 
diff --git a/tools/retro-library/missing_artwork.py b/tools/retro-library/missing_artwork.py
index 42fb8e870..770f84f30 100644
--- a/tools/retro-library/missing_artwork.py
+++ b/tools/retro-library/missing_artwork.py
@@ -86,7 +86,7 @@ def collect_game_data(system_dir, extensions):
                     name_cleaned = name_cleaned.strip().replace(' ', '_').replace('-', '_')
                     name_cleaned = re.sub(r'_+', '_', name_cleaned)
                     name_cleaned = name_cleaned.replace('+', '').replace('&', '').replace('!', '').replace("'", '').replace('.', '')
-
+                    name_cleaned = name_cleaned.lower()
                     rom_hash = calculate_hash(file_path)
 
                     # Check for missing images
diff --git a/tools/retro-library/missing_artwork_platforms.py b/tools/retro-library/missing_artwork_platforms.py
index 7df0e7782..f3b6a8467 100644
--- a/tools/retro-library/missing_artwork_platforms.py
+++ b/tools/retro-library/missing_artwork_platforms.py
@@ -64,7 +64,7 @@ def has_missing_images(system_dir, extensions):
                     name_cleaned = name_cleaned.replace(' ', '_').replace('-', '_')
                     name_cleaned = re.sub(r'_+', '_', name_cleaned)
                     name_cleaned = name_cleaned.replace('+', '').replace('&', '').replace('!', '').replace("'", '').replace('.', '')
-
+                    name_cleaned = name_cleaned.lower()
                     img_path = os.path.join(images_path, f"{platform}/{name_cleaned}.jpg")
                     if not os.path.exists(img_path):
                         return True