diff --git a/net-im/why2/why2-2.2.1.ebuild b/net-im/why2/why2-2.2.1.ebuild
index 3735aface8..8e0c1bc04f 100644
--- a/net-im/why2/why2-2.2.1.ebuild
+++ b/net-im/why2/why2-2.2.1.ebuild
@@ -672,6 +672,7 @@ CRATES="
 "
 
 LLVM_COMPAT=( {19..23} )
+RUST_MIN_VER="1.90"
 
 inherit cargo llvm-r2