diff --git a/nix/rust.nix b/nix/rust.nix
index c880e0c41c72..6b420677751f 100644
--- a/nix/rust.nix
+++ b/nix/rust.nix
@@ -158,7 +158,7 @@ in
       pname = "plonk_wasm";
       version = "0.1.0";
       src = final.lib.sourceByRegex ../src [
-        "^lib(/crypto(/kimchi(/wasm(/.*)?)?)?)?$"
+        "^lib(/crypto(/kimchi_bindings(/wasm(/.*)?)?)?)?$"
         "^lib(/crypto(/proof-systems(/.*)?)?)?$"
       ];
       sourceRoot = "source/lib/crypto/kimchi_bindings/wasm";