diff --git a/src/index.d.ts b/src/index.d.ts
index 4bbbd31..335cf93 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -35,7 +35,7 @@ declare namespace Charm {
 	 *
 	 * @returns The current state.
 	 */
-	type Molecule<State> = () => State;
+	type Molecule<State> = (...args: any[]) => State;
 
 	/**
 	 * Infers the type of the state produced by the given molecule.
diff --git a/src/types.luau b/src/types.luau
index 16d19f2..43795f9 100644
--- a/src/types.luau
+++ b/src/types.luau
@@ -18,7 +18,7 @@ export type Atom<T> = (() -> T) & (state: T | (T) -> T) -> T
 	@template State The type of the state.
 	@return The current state.
 ]=]
-export type Molecule<T> = () -> T
+export type Molecule<T> = (...any) -> T
 
 --[=[
 	Optional configuration for creating an atom.