diff --git a/transport/meson.build b/transport/meson.build
index 4011220..9e5a241 100644
--- a/transport/meson.build
+++ b/transport/meson.build
@@ -1,3 +1,3 @@
 if get_option('transport-implementation') == 'serial'
-  subdir('serialbridge')
+    subdir('serialbridge')
 endif