diff --git a/build-config/libplugin/meson.build b/build-config/libplugin/meson.build
index 8cdd62c..7b710c8 100644
--- a/build-config/libplugin/meson.build
+++ b/build-config/libplugin/meson.build
@@ -1,4 +1,4 @@
-plugin_p = subproject('libplugin', default_options: ['pkg-config=' + pkg_config_bool_str, 'tests=' + get_option('tests')])
+plugin_p = subproject('libplugin', default_options: ['pkg-config=' + pkg_config_bool_str, 'tests=' + get_option('tests').to_string()])
 libplugin = plugin_p.get_variable('libplugin')
 
 plugin_dep  = plugin_p.get_variable('plugin_dep')