diff --git a/test cases/common/64 custom header generator/meson.build b/test cases/common/64 custom header generator/meson.build
index bcc9a53ce..33ba4c593 100644
--- a/test cases/common/64 custom header generator/meson.build	
+++ b/test cases/common/64 custom header generator/meson.build	
@@ -3,9 +3,9 @@ project('custom header generator', 'c')
 gen = find_program('makeheader.py')
 
 generated_h = custom_target('makeheader.py',
-output : 'myheader.lh', # Suffix not .h to ensure this works with custom suffixes, too.
-input : 'input.def',
-command : [gen, '@INPUT0@', '@OUTPUT0@', files('somefile.txt')])
+  output : 'myheader.lh', # Suffix not .h to ensure this works with custom suffixes, too.
+  input : 'input.def',
+  command : [gen, '@INPUT0@', '@OUTPUT0@', files('somefile.txt')])
 
 prog = executable('prog', 'prog.c', generated_h)
 test('gentest', prog)