diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a94b0c..3a2af64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,17 @@
+# 1.0.11
+
+## Fix
+
+- Source map restoration
+- prototype line consistence
+
 # 1.0.10
 
 ## Change
 
 - linter from prettier+eslint to biome
 
-## Bug-fix
+## Fix
 
 -   `KeySet` now rooted on `Object.create(null)` instead of `{}` so that `'constructor' in secludedProperties` is false
 -   Temporary object (modified as head with `this` diamond as proxy) now has good constructor and `instanceof`
diff --git a/src/seclude.ts b/src/seclude.ts
index ef37c3a..92c0190 100644
--- a/src/seclude.ts
+++ b/src/seclude.ts
@@ -59,6 +59,7 @@ export function Seclude<TBase extends Ctor, Keys extends (keyof InstanceType<TBa
 		}
 	}
 	const diamond = diamondSecluded ? Diamond(PropertyCollector) : PropertyCollector
+	// TODO: Should be a function with a proxy prototype: not a prototype whose prototype is a proxy
 	class GateKeeper extends diamond {
 		/*static (obj: GateKeeper): TBase | undefined {
 			return privates.get(obj)
@@ -115,7 +116,7 @@ export function Seclude<TBase extends Ctor, Keys extends (keyof InstanceType<TBa
 		return rv
 	}
 	/**
-	 * Mambo jumbo to determine who is `this`
+	 * Mumbo jumbo to determine who is `this`
 	 * Because the prototype becomes the object being constructed, we have to invent a constructor who has this object
 	 * as prototype
 	 */
diff --git a/src/utils.ts b/src/utils.ts
index 5349067..354dfb0 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -79,10 +79,10 @@ export function nextInFLeg(
 		/* istanbul ignore next: internal bug guard */
 		if (ndx <= 0) throw new Error('Inconsistent diamond hierarchy')
 	}
-	let rv: PropertyDescriptor | undefined
-	do rv = nextInLine(fLeg[ndx++], name)
-	while (!rv && ndx < fLeg.length)
-	return rv
+	while (ndx < fLeg.length) {
+		const rv = nextInLine(fLeg[ndx++], name)
+		if (rv) return rv
+	}
 }
 
 export const allFLegs = new WeakMap<Ctor, Ctor[]>()
diff --git a/test/prototypes.test.ts b/test/prototypes.test.ts
new file mode 100644
index 0000000..509db33
--- /dev/null
+++ b/test/prototypes.test.ts
@@ -0,0 +1,35 @@
+import Diamond from '../src'
+
+class X {}
+
+class A extends Diamond(X) {}
+
+class B extends A {}
+class C extends A {}
+
+class D extends Diamond(B, C) {}
+
+test('prototype console', () => {
+	const d = new D()
+
+	for (
+		let browser = Object.getPrototypeOf(d);
+		browser !== Object.prototype;
+		browser = Object.getPrototypeOf(browser)
+	) {
+		console.log(browser.constructor.name)
+	}
+})
+test('prototype line', () => {
+	const expected = ['D', 'Diamond', 'B', 'A', 'C', 'A', 'X', 'Object']
+	const d = new D()
+
+	for (
+		let browser = Object.getPrototypeOf(d);
+		browser !== Object.prototype;
+		browser = Object.getPrototypeOf(browser)
+	) {
+		expect(browser.constructor.name).toBe(expected.shift())
+	}
+	expect(expected).toEqual(['Object'])
+})
diff --git a/tsconfig.json b/tsconfig.json
index e487b94..81783df 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,7 +3,10 @@
 		"moduleResolution": "Node",
 		"target": "ESNext",
 		"module": "ESNext",
+		"sourceMap": true,
 		"declaration": false,
+		"experimentalDecorators": true,
+		"emitDecoratorMetadata": true,
 		"strict": true,
 		"esModuleInterop": true,
 		"skipLibCheck": false,