diff --git a/core/Initializer.py b/core/Initializer.py
index 22d28db0..4c2aa42f 100644
--- a/core/Initializer.py
+++ b/core/Initializer.py
@@ -286,8 +286,8 @@ def checkInternet(self):
 
 	# noinspection DuplicatedCode
 	def getUpdateSource(self, definedSource: str) -> str:
-		updateSource = 'master'
-		#TODO remove 'bookworm'
+		#TODO remove bookworm shortcut
+		updateSource = 'bookworm'
 		if definedSource in {'master', 'release', 'bookworm'}:
 			return updateSource