diff --git a/backends.py b/backends.py
index fcc2dff5a..ff80a595f 100755
--- a/backends.py
+++ b/backends.py
@@ -361,7 +361,7 @@ class NinjaBackend(Backend):
             for i in range(len(infilelist)):
                 infilename = os.path.join(self.build_to_src, infilelist[i])
                 outfilename = os.path.join(self.get_target_dir(target), outfilelist[i])
-                args = [x.replace("@INPUTNAME@", infilename).replace('@OUTPUTNAME@', outfilename)\
+                args = [x.replace("@INPUT@", infilename).replace('@OUTPUT@', outfilename)\
                         for x in base_args]
                 cmdlist = [exe_file] + args
                 build = 'build %s: CUSTOM_COMMAND %s | %s\n' % \
diff --git a/test cases/30 pipeline/meson.build b/test cases/30 pipeline/meson.build
index f43d18cea..e93890f86 100644
--- a/test cases/30 pipeline/meson.build	
+++ b/test cases/30 pipeline/meson.build	
@@ -3,8 +3,8 @@ project('pipeline test', 'c')
 e1 = executable('srcgen', 'srcgen.c')
 
 gen = generator(e1, \
-name_rule : '@BASENAME@.c', \
-arguments : ['@INPUTNAME@', '@OUTPUTNAME@'])
+ name_rule : '@BASENAME@.c', \
+ arguments : ['@INPUT@', '@OUTPUT@'])
 
 generated = gen.process('input_src.dat')