diff --git a/embed/src/lib.rs b/embed/src/lib.rs
index 9331bd8..d67790b 100644
--- a/embed/src/lib.rs
+++ b/embed/src/lib.rs
@@ -1,3 +1,5 @@
+#![cfg(procmacro2_semver_exempt)]
+
 mod dir;
 mod file;