diff --git a/src/jcanvas-crescents.ts b/src/jcanvas-crescents.ts
index 3c0e78a..b9f01fd 100644
--- a/src/jcanvas-crescents.ts
+++ b/src/jcanvas-crescents.ts
@@ -39,7 +39,7 @@ function getIntersection(
 	return [xi, yi];
 }
 
-$.jCanvas.extend<{ eclipse: number }>({
+$.jCanvas.extend({
 	name: "drawCrescent",
 	type: "crescent",
 	props: {
diff --git a/src/jcanvas-donuts.ts b/src/jcanvas-donuts.ts
index 3f929a2..423191d 100644
--- a/src/jcanvas-donuts.ts
+++ b/src/jcanvas-donuts.ts
@@ -8,7 +8,7 @@ import $ from "jquery";
 
 const PI = Math.PI;
 
-$.jCanvas.extend<{ holeSize: number }>({
+$.jCanvas.extend({
 	name: "drawDonut",
 	type: "donut",
 	props: {
diff --git a/src/jcanvas-hearts.ts b/src/jcanvas-hearts.ts
index d265fac..09ba6bc 100644
--- a/src/jcanvas-hearts.ts
+++ b/src/jcanvas-hearts.ts
@@ -8,7 +8,7 @@ import $ from "jquery";
 
 const PI = Math.PI;
 
-$.jCanvas.extend<{ size: number }>({
+$.jCanvas.extend({
 	name: "drawHeart",
 	type: "heart",
 	props: {
diff --git a/src/jcanvas.d.ts b/src/jcanvas.d.ts
index ed9b7f1..be45a14 100644
--- a/src/jcanvas.d.ts
+++ b/src/jcanvas.d.ts
@@ -16,9 +16,9 @@ declare module "jcanvas/dist/esm/jcanvas-donuts.min.js";
 declare module "jcanvas/dist/esm/jcanvas-hearts.min.js";
 declare module "jcanvas/dist/esm/jcanvas-handles.min.js";
 
-interface JCanvasPluginParams<TProps> {
+interface JCanvasPluginParams<TProps extends object> {
 	name: string;
-	props?: Record<string, any>;
+	props?: TProps;
 	type?: string;
 	fn: (
 		this: HTMLCanvasElement,