diff --git a/scripts/common.py b/scripts/common.py
index 229bb1b8..51ebae21 100644
--- a/scripts/common.py
+++ b/scripts/common.py
@@ -647,6 +647,14 @@ def resolve_platform_cores(
     return result
 
 
+MANUFACTURER_PREFIXES = (
+    "microsoft-", "nintendo-", "sony-", "sega-", "snk-", "panasonic-",
+    "nec-", "epoch-", "mattel-", "fairchild-", "hartung-", "tiger-",
+    "magnavox-", "philips-", "bandai-", "casio-", "coleco-",
+    "commodore-", "sharp-", "sinclair-", "atari-",
+)
+
+
 def _norm_system_id(sid: str) -> str:
     """Normalize system ID for cross-platform matching.
 
@@ -655,11 +663,7 @@ def _norm_system_id(sid: str) -> str:
     (e.g., "microsoft-xbox", "nintendo-wii-u").
     """
     s = sid.lower().replace("_", "-")
-    for prefix in ("microsoft-", "nintendo-", "sony-", "sega-",
-                    "snk-", "panasonic-", "nec-", "epoch-", "mattel-",
-                    "fairchild-", "hartung-", "tiger-", "magnavox-",
-                    "philips-", "bandai-", "casio-", "coleco-",
-                    "commodore-", "sharp-", "sinclair-"):
+    for prefix in MANUFACTURER_PREFIXES:
         if s.startswith(prefix):
             s = s[len(prefix):]
             break
diff --git a/scripts/generate_pack.py b/scripts/generate_pack.py
index 2acd2c90..fb9b5dbe 100644
--- a/scripts/generate_pack.py
+++ b/scripts/generate_pack.py
@@ -25,6 +25,7 @@ from pathlib import Path
 
 sys.path.insert(0, os.path.dirname(__file__))
 from common import (
+    MANUFACTURER_PREFIXES,
     _build_validation_index, build_zip_contents_index, check_file_validation,
     check_inside_zip, compute_hashes, fetch_large_file, filter_files_by_mode,
     group_identical_platforms, list_emulator_profiles, list_platform_system_ids,
@@ -256,11 +257,7 @@ def generate_pack(
         display_parts = []
         for sid in system_filter:
             s = sid.lower().replace("_", "-")
-            for prefix in ("microsoft-", "nintendo-", "sony-", "sega-", "snk-",
-                           "panasonic-", "nec-", "epoch-", "mattel-", "fairchild-",
-                           "hartung-", "tiger-", "magnavox-", "philips-", "bandai-",
-                           "casio-", "coleco-", "commodore-", "sharp-", "sinclair-",
-                           "atari-"):
+            for prefix in MANUFACTURER_PREFIXES:
                 if s.startswith(prefix):
                     s = s[len(prefix):]
                     break