diff --git a/credsweeper/file_handler/file_path_extractor.py b/credsweeper/file_handler/file_path_extractor.py
index a1a598636..84fa1213c 100644
--- a/credsweeper/file_handler/file_path_extractor.py
+++ b/credsweeper/file_handler/file_path_extractor.py
@@ -127,16 +127,18 @@ def check_exclude_file(config: Config, path: str) -> bool:
         Return:
             True when the file full path should be excluded according config
         """
-        path = path.replace('\\', '/').lower()
-        if config.not_allowed_path_pattern.match(path):
+        path = path.replace('\\', '/')
+        lower_path = path.lower()
+        if config.not_allowed_path_pattern.match(lower_path):
             return True
         for exclude_pattern in config.exclude_patterns:
-            if exclude_pattern.match(path):
+            if exclude_pattern.match(lower_path):
                 return True
         for exclude_path in config.exclude_paths:
+            # must be case-sensitive
             if exclude_path in path:
                 return True
-        file_extension = Util.get_extension(path, lower=False)
+        file_extension = Util.get_extension(lower_path, lower=False)
         if file_extension in config.exclude_extensions:
             return True
         if not config.depth and file_extension in config.exclude_containers:
diff --git a/tests/file_handler/test_file_path_extractor.py b/tests/file_handler/test_file_path_extractor.py
index 212b22bb7..16fb5236c 100644
--- a/tests/file_handler/test_file_path_extractor.py
+++ b/tests/file_handler/test_file_path_extractor.py
@@ -46,6 +46,7 @@ def test_apply_gitignore_n(self) -> None:
     @pytest.mark.parametrize("file_path", [
         "/tmp/test/dummy.p12",
         "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmptjz2p1zk\\test\\dummy.p12",
+        "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmptjz2p1zk\\TarGet\\dummy.p12",
     ])
     def test_check_exclude_file_p(self, config: Config, file_path: pytest.fixture) -> None:
         config.find_by_ext = True
@@ -55,7 +56,6 @@ def test_check_exclude_file_p(self, config: Config, file_path: pytest.fixture) -
         "dummy.JPG",
         "/tmp/target/dummy.p12",
         "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmptjz2p1zk\\target\\dummy.p12",
-        "C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmptjz2p1zk\\tArGet\\dummy.p12",
     ])
     def test_check_exclude_file_n(self, config: Config, file_path: pytest.fixture) -> None:
         config.find_by_ext = True