diff --git a/nix/overlay.nix b/nix/overlay.nix
index f1a7cb13..f84b6036 100644
--- a/nix/overlay.nix
+++ b/nix/overlay.nix
@@ -14,6 +14,7 @@ final: prev: {
 			debugMode = true;
 		};
 
+		mount = final.callPackage ../rust-src/mount {};
 		kernelPackages = final.recurseIntoAttrs (final.linuxPackagesFor final.bcachefs.kernel);
 		kernel = final.callPackage ./bcachefs-kernel.nix {
 			commit = final.bcachefs.tools.bcachefs_revision;
diff --git a/mount/Cargo.lock b/rust-src/mount/Cargo.lock
similarity index 100%
rename from mount/Cargo.lock
rename to rust-src/mount/Cargo.lock
diff --git a/mount/Cargo.toml b/rust-src/mount/Cargo.toml
similarity index 100%
rename from mount/Cargo.toml
rename to rust-src/mount/Cargo.toml
diff --git a/mount/build.rs b/rust-src/mount/build.rs
similarity index 100%
rename from mount/build.rs
rename to rust-src/mount/build.rs
diff --git a/mount/src/filesystem.rs b/rust-src/mount/src/filesystem.rs
similarity index 100%
rename from mount/src/filesystem.rs
rename to rust-src/mount/src/filesystem.rs
diff --git a/mount/src/key.rs b/rust-src/mount/src/key.rs
similarity index 100%
rename from mount/src/key.rs
rename to rust-src/mount/src/key.rs
diff --git a/mount/src/keyutils_wrapper.h b/rust-src/mount/src/keyutils_wrapper.h
similarity index 100%
rename from mount/src/keyutils_wrapper.h
rename to rust-src/mount/src/keyutils_wrapper.h
diff --git a/mount/src/lib.rs b/rust-src/mount/src/lib.rs
similarity index 100%
rename from mount/src/lib.rs
rename to rust-src/mount/src/lib.rs
diff --git a/mount/src/libbcachefs_wrapper.h b/rust-src/mount/src/libbcachefs_wrapper.h
similarity index 100%
rename from mount/src/libbcachefs_wrapper.h
rename to rust-src/mount/src/libbcachefs_wrapper.h