2 files changed, 4 insertions, 2 deletions
diff --git a/test cases/common/259 preprocess/bar.c b/test cases/common/259 preprocess/bar.c
index 0d961e675..598abcab0 100644
--- a/test cases/common/259 preprocess/bar.c
+++ b/test cases/common/259 preprocess/bar.c
@@ -1,3 +1,3 @@
 int @BAR@(void) {
-    return BAR + PLOP;
+    return BAR + PLOP + BAZ;
 }
diff --git a/test cases/common/259 preprocess/meson.build b/test cases/common/259 preprocess/meson.build
index 40168f95d..2ca5bed59 100644
--- a/test cases/common/259 preprocess/meson.build
+++ b/test cases/common/259 preprocess/meson.build
@@ -20,7 +20,9 @@ dep = declare_dependency(compile_args: '-DPLOP=0')
 pp_files = cc.preprocess('foo.c', bar_x, 'math.c',
   output: '@PLAINNAME@.c',
   dependencies: dep,
-  depends: foo_h)
+  depends: foo_h,
+  compile_args: ['-DBAZ=0'],
+)
 
 foreach f : pp_files
   message(f.full_path())