diff --git a/interpreter.py b/interpreter.py
index ecdf7183d..35c9a620b 100755
--- a/interpreter.py
+++ b/interpreter.py
@@ -66,15 +66,15 @@ class Generator(InterpreterObject):
                 raise InvalidArguments('A non-string object in "arguments" keyword argument.')
         self.arglist = args
         
-        if 'name_rule' not in kwargs:
-            raise InvalidArguments('Generator must have "name_rule" keyword argument.')
-        rule = kwargs['name_rule']
+        if 'output_name' not in kwargs:
+            raise InvalidArguments('Generator must have "output_name" keyword argument.')
+        rule = kwargs['output_name']
         if not isinstance(rule, str):
-            raise InvalidArguments('"name_rule" keyword argument must be a string.')
+            raise InvalidArguments('"output_name" keyword argument must be a string.')
         if not '@BASENAME@' in rule:
-            raise InvalidArguments('"name_rule" must contain @BASENAME@.')
+            raise InvalidArguments('"output_name" must contain @BASENAME@.')
         if '/' in rule:
-            raise InvalidArguments('"name_rule" must not contain a slash.')
+            raise InvalidArguments('"output_name" must not contain a slash.')
         self.name_rule = rule
 
     def get_base_outname(self, inname):
diff --git a/test cases/30 pipeline/meson.build b/test cases/30 pipeline/meson.build
index e93890f86..4192c49a1 100644
--- a/test cases/30 pipeline/meson.build	
+++ b/test cases/30 pipeline/meson.build	
@@ -3,7 +3,7 @@ project('pipeline test', 'c')
 e1 = executable('srcgen', 'srcgen.c')
 
 gen = generator(e1, \
- name_rule : '@BASENAME@.c', \
+ output_name  : '@BASENAME@.c', \
  arguments : ['@INPUT@', '@OUTPUT@'])
 
 generated = gen.process('input_src.dat')