diff --git a/nixide-sys/Cargo.toml b/nixide-sys/Cargo.toml
index 41a1b93..f1f98e6 100644
--- a/nixide-sys/Cargo.toml
+++ b/nixide-sys/Cargo.toml
@@ -15,6 +15,7 @@ targets = [ "x86_64-unknown-linux-gnu" ]
 
 [lib]
 path = "src/lib.rs"
+# crate-type = ["dylib"] # build libnixide_sys.so
 
 # NOTE: `[features]` have a 1-1 correspondence to the
 # NOTE: shared libraries produced by the Nix C API.