diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 41795086df98..4472e465dffe 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -43,7 +43,7 @@ repos:
       - id: check-yaml
         exclude: ^\.clang-format$
       - id: end-of-file-fixer
-        exclude: ^.*UTF-8-BOM.txt$
+        exclude: ^.*(UTF-8-BOM\.txt|\.ts)$
       - id: mixed-line-ending
       - id: trailing-whitespace
         exclude: \.(c|cc|cxx|cpp|ts|frag|glsl|h|hpp|hxx|ih|ispc|ipp|java|js|m|mm|proto|vert)$
@@ -178,6 +178,7 @@ repos:
         stages:
           - commit
           - manual
+        require_serial: true
         language: python
         additional_dependencies:
           - lxml==4.9.3
diff --git a/tools/ts_source_copy_check.py b/tools/ts_source_copy_check.py
index bec83faefcc4..04f703c0ae47 100755
--- a/tools/ts_source_copy_check.py
+++ b/tools/ts_source_copy_check.py
@@ -21,7 +21,12 @@
 def is_untranstaled_allowed(source_text, language):
     if os.path.exists(ALLOW_LIST_PATH):
         parser = etree.XMLParser(recover=True)
-        tree = etree.parse(ALLOW_LIST_PATH, parser)
+        try:
+            tree = etree.parse(ALLOW_LIST_PATH, parser)
+        except Exception as e:
+            print("XML parsing failed:")
+            print(e)
+            return
         root = tree.getroot()
     else:
         return False
@@ -44,12 +49,22 @@ def is_untranstaled_allowed(source_text, language):
 def add_to_allow_list(source_text, language):
     if os.path.exists(PROPOSED_ALLOW_LIST_PATH):
         parser = etree.XMLParser(recover=True)
-        tree = etree.parse(PROPOSED_ALLOW_LIST_PATH, parser)
+        try:
+            tree = etree.parse(PROPOSED_ALLOW_LIST_PATH, parser)
+        except Exception as e:
+            print("XML parsing failed:")
+            print(e)
+            return
         root = tree.getroot()
     else:
         if os.path.exists(ALLOW_LIST_PATH):
             parser = etree.XMLParser(recover=True)
-            tree = etree.parse(ALLOW_LIST_PATH, parser)
+            try:
+                tree = etree.parse(ALLOW_LIST_PATH, parser)
+            except Exception as e:
+                print("XML parsing failed:")
+                print(e)
+                return
             root = tree.getroot()
         else:
             root = etree.Element("allow_list")