diff --git a/pkgs/build-support/rust/build-rust-crate.nix b/pkgs/build-support/rust/build-rust-crate.nix
index e36fab36bf97..f1f344ca3c7d 100644
--- a/pkgs/build-support/rust/build-rust-crate.nix
+++ b/pkgs/build-support/rust/build-rust-crate.nix
@@ -291,6 +291,7 @@ let buildCrate = { crateName, crateVersion, crateAuthors, buildDependencies,
         mkdir -p $out/bin
         cp -P target/bin/* $out/bin # */
       fi
+      runHook postInstall
     '';
 in