diff --git a/theme.py b/theme.py
index 2f8830415..add510aa7 100644
--- a/theme.py
+++ b/theme.py
@@ -276,8 +276,7 @@ def setTheme(baseDir: str, name: str) -> bool:
     themes = getThemesList()
     for themeName in themes:
         if name == themeName.lower():
-            themeFunctionName = 'setTheme' + themeName
-            themeFunctionName(baseDir)
+            globals()['setTheme' + themeName](baseDir)
             result = True
 
     if not result: