diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index 11d513129..e0aebc1b2 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -235,7 +235,7 @@ class ConfigurationDataHolder(MutableInterpreterObject):
         else:
             raise InterpreterException('Entry %s not in configuration data.' % name)
         if val[0] == '"' and val[-1] == '"':
-          return val[1:len(val)-1]
+            return val[1:-1]
         return val
 
     def get(self, name):