diff --git a/bigtext.py b/bigtext.py
index d0c097c..a000274 100644
--- a/bigtext.py
+++ b/bigtext.py
@@ -50,6 +50,9 @@ class BigText(QWidget):
     def get_file(self):
         return self.model.get_file()
 
+    def destruct(self):
+        pass
+
 
 class InnerBigText(QWidget):
     _byte_offset = 0
diff --git a/filterwidget.py b/filterwidget.py
index a01f3d4..2a1a833 100644
--- a/filterwidget.py
+++ b/filterwidget.py
@@ -94,6 +94,10 @@ class FilterWidget(QWidget):
         self.layout.addWidget(filter_bar)
         self.layout.addWidget(self.hits_view)
 
+    def destruct(self):
+        print("cleanup: ", self.tmpfilename)
+        os.remove(self.tmpfilename)
+
     def filter_changed(self):
         query = self.query_field.text()
         ignore_case = self.ignore_case.isChecked()
diff --git a/fulltabwidget.py b/fulltabwidget.py
index b58de0a..1eb4a9d 100644
--- a/fulltabwidget.py
+++ b/fulltabwidget.py
@@ -11,8 +11,8 @@ class FullTabWidget(QWidget):
     def __init__(self, model: LogFileModel):
         super(FullTabWidget, self).__init__()
         self._model = model
-        self._file_view = BigText(model)
-        self._filter_hit_view = FilterWidget(self._model)
+        self.file_view = BigText(model)
+        self.filter_hit_view = FilterWidget(self._model)
 
         self.layout = QVBoxLayout(self)
         self.layout.setContentsMargins(0, 0, 0, 0)
@@ -21,10 +21,12 @@ class FullTabWidget(QWidget):
         splitter.setOrientation(Qt.Orientation.Vertical)
         splitter.setHandleWidth(5)
         #splitter.setStyleSheet("QSplitter::handle{background: #cccccc;}")
-        splitter.addWidget(self._file_view)
-        splitter.addWidget(self._filter_hit_view)
+        splitter.addWidget(self.file_view)
+        splitter.addWidget(self.filter_hit_view)
 
         self.layout.addWidget(splitter)
 
-    def file_view(self):
-        return self._file_view
\ No newline at end of file
+
+    def destruct(self):
+        self.file_view.destruct()
+        self.filter_hit_view.destruct()
\ No newline at end of file
diff --git a/tabs.py b/tabs.py
index 4c7c466..aa0c273 100644
--- a/tabs.py
+++ b/tabs.py
@@ -53,6 +53,7 @@ class Tabs(QWidget):
 
     def _close_tab(self, tab_index: int):
         full_tab: FullTabWidget = self.tabs.widget(tab_index)
+        full_tab.destruct()
         del self.tabs_by_filename[full_tab.file_view.get_file()]
         self.tabs.removeTab(tab_index)