diff --git a/rust/nix-expr/src/value.rs b/rust/nix-expr/src/value.rs
index ca7b5a4..bfa7011 100644
--- a/rust/nix-expr/src/value.rs
+++ b/rust/nix-expr/src/value.rs
@@ -1,3 +1,5 @@
+pub mod __private;
+
 use nix_c_raw as raw;
 use nix_util::{check_call, context::Context};
 use std::ptr::{null_mut, NonNull};
diff --git a/rust/nix-expr/src/value/__private.rs b/rust/nix-expr/src/value/__private.rs
new file mode 100644
index 0000000..6b5b2e8
--- /dev/null
+++ b/rust/nix-expr/src/value/__private.rs
@@ -0,0 +1,13 @@
+//! Functions that are relevant for other bindings modules, but normally not end users.
+use super::Value;
+use nix_c_raw as raw;
+
+/// See [Value::new].
+pub unsafe fn raw_value_new(ptr: *mut raw::Value) -> Value {
+    Value::new(ptr)
+}
+
+/// See [Value::new_borrowed].
+pub unsafe fn raw_value_new_borrowed(ptr: *mut raw::Value) -> Value {
+    Value::new_borrowed(ptr)
+}