diff --git a/meson.build b/meson.build
index 4ff7542..b1624e1 100644
--- a/meson.build
+++ b/meson.build
@@ -12,4 +12,6 @@ ssp_dep = declare_dependency(
   dependencies: fast_float_dep
   )
 
-subdir('test')
+if not meson.is_subproject()
+  subdir('test')
+endif