diff --git a/src/types/index.d.ts b/src/types/index.d.ts
index 95358ecdd02..da4ab6a130c 100644
--- a/src/types/index.d.ts
+++ b/src/types/index.d.ts
@@ -3316,6 +3316,8 @@ export type RadialTickOptions = TickOptions & {
 }
 
 export type RadialLinearScaleOptions = CoreScaleOptions & {
+  backgroundColor: Color;
+
   animate: boolean;
 
   startAngle: number;