diff --git a/src/ui/bigtext/logFileModel.py b/src/ui/bigtext/logFileModel.py
index d043554..b12e26e 100644
--- a/src/ui/bigtext/logFileModel.py
+++ b/src/ui/bigtext/logFileModel.py
@@ -22,8 +22,6 @@ class LogFileModel:
     range_start = 0
     range_end = -1
 
-    _line_cache = {}
-
     def __init__(self, file: str, settings: Settings, original_file: str = False):
         """
         :param file:
@@ -34,6 +32,7 @@ class LogFileModel:
         self._file = os.path.realpath(file)
         self._original_file = os.path.realpath(original_file) if original_file else self._file
         self._file_name = os.path.basename(self._original_file)
+        self._line_cache = {}
 
     def highlighters(self):
         all_highlighters = Highlighting.read_config(self.settings)
@@ -137,6 +136,7 @@ class LogFileModel:
         return re.match(r"\w", char) is not None
 
     def prune_cache(self, range_start: int, range_end: int):
+        print(f"cache size: {len(self._line_cache.keys())}")
         for key in list(self._line_cache.keys()):
             line = self._line_cache[key]
             if range_start > line.byte_end() or line.byte_offset() > range_end: