diff --git a/igniter/install_dialog.py b/igniter/install_dialog.py
index 026799a13c..36300c5300 100644
--- a/igniter/install_dialog.py
+++ b/igniter/install_dialog.py
@@ -137,8 +137,6 @@ class MongoWidget(QtWidgets.QWidget):
 
 class InstallDialog(QtWidgets.QDialog):
     """Main Igniter dialog window."""
-    _size_w = 400
-    _size_h = 600
     _controls_disabled = False
 
     def __init__(self, parent=None):
@@ -165,11 +163,6 @@ class InstallDialog(QtWidgets.QDialog):
             QtCore.Qt.WindowMinimizeButtonHint
         )
 
-        self.setMinimumSize(
-            QtCore.QSize(self._size_w, self._size_h))
-        self.setMaximumSize(
-            QtCore.QSize(self._size_w + 100, self._size_h + 500))
-
         # style for normal console text
         self.default_console_style = QtGui.QTextCharFormat()
         # self.default_console_style.setFontPointSize(0.1)