diff --git a/src/icmtoolchain/cli.py b/src/icmtoolchain/cli.py
index b593d63..6c9e45c 100644
--- a/src/icmtoolchain/cli.py
+++ b/src/icmtoolchain/cli.py
@@ -1,6 +1,7 @@
 import sys
 from typing import Optional
 
+
 def show_help():
 	print("Usage: icmtoolchain [options] ... <task1> [arguments1] ...")
 	print(" " * 2 + "--help: Display this message.")
diff --git a/src/icmtoolchain/workspace.py b/src/icmtoolchain/workspace.py
index 870d0e8..773e39b 100644
--- a/src/icmtoolchain/workspace.py
+++ b/src/icmtoolchain/workspace.py
@@ -432,6 +432,7 @@ class WorkspaceBuildConfiguration:
 		from xml.dom import minidom
 		component = WorkspaceBuildConfiguration.get_idea_task(name, "ShConfigurationType")
 		configuration: minidom.Node = component.childNodes[0]
+		assert component.ownerDocument is not None
 		document: minidom.Document = component.ownerDocument
 		relative_path = GLOBALS.PREFERRED_CONFIG.get_relative_path(path)
 		relative_path = "$PROJECT_DIR$/" + relative_path.replace("\\", "/")
@@ -477,6 +478,7 @@ class WorkspaceBuildConfiguration:
 	def get_idea_compound_task(name: str, order: Collection[str]):
 		from xml.dom import minidom
 		component = WorkspaceBuildConfiguration.get_idea_task(name, "CompoundRunConfigurationType")
+		assert component.ownerDocument is not None
 		document: minidom.Document = component.ownerDocument
 		configuration: minidom.Node = component.childNodes[0]