diff --git a/src/tribler/core/utilities/process_checker.py b/src/tribler/core/utilities/process_checker.py
index 429230bb19e..07583761242 100644
--- a/src/tribler/core/utilities/process_checker.py
+++ b/src/tribler/core/utilities/process_checker.py
@@ -12,6 +12,9 @@
 from tribler.core.utilities.path_util import Path
 
 
+LOCK_FILE_NAME = 'triblerd.lock'
+
+
 @contextmanager
 def single_tribler_instance(directory: Path):
     checker = ProcessChecker(directory)
@@ -28,11 +31,12 @@ class ProcessChecker:
     This class contains code to check whether a Tribler process is already running.
     """
 
-    def __init__(self, directory: Path, lock_file_name: str = 'tribler.lock'):
-        self.logger = logging.getLogger(self.__class__.__name__)
+    def __init__(self, directory: Path, lock_file_name: Optional[str] = None):
+        lock_file_name = lock_file_name or LOCK_FILE_NAME
         self.lock_file = directory / lock_file_name
-        self.re_tribler = re.compile(r'tribler\b(?![/\\])')
+        self.logger = logging.getLogger(self.__class__.__name__)
         self.logger.info(f'Lock file: {self.lock_file}')
+        self.re_tribler = re.compile(r'tribler\b(?![/\\])')
 
     def check_and_restart_if_necessary(self) -> bool:
         self.logger.info('Check')