diff --git a/build.rs b/build.rs
index 5be11f0..0989570 100644
--- a/build.rs
+++ b/build.rs
@@ -6,6 +6,8 @@ use std::path::Path;
 fn main() -> io::Result<()> {
     println!("cargo:rerun-if-changed=src/tests");
 
+    println!("cargo:rustc-check-cfg=cfg(trybuild_no_target)");
+
     let out_dir = env::var_os("OUT_DIR").unwrap();
     let target = env::var("TARGET").ok();
     let path = Path::new(&out_dir).join("target");