diff --git a/meson.build b/meson.build
index 8370507c..d9b05319 100644
--- a/meson.build
+++ b/meson.build
@@ -8,7 +8,7 @@ if get_option('workdir_current') == true
     add_project_arguments('-DWORKDIR_CURRENT', language: 'cpp')
 endif
 
-add_project_arguments('-D' + get_option('binding').to_upper(), language: 'cpp')
+add_project_arguments('-DBINDING_' + get_option('binding').to_upper(), language: 'cpp')
 
 subdir('src')
 subdir(binding_dir)