diff --git a/packages/common/src/pipes/number_pipe.ts b/packages/common/src/pipes/number_pipe.ts
index cc8a128d3c3..1edc0ba62a3 100644
--- a/packages/common/src/pipes/number_pipe.ts
+++ b/packages/common/src/pipes/number_pipe.ts
@@ -83,13 +83,6 @@ import {invalidPipeArgumentError} from './invalid_pipe_argument_error';
 export class DecimalPipe implements PipeTransform {
   constructor(@Inject(LOCALE_ID) private _locale: string) {}
 
-  transform(value: number | string, digitsInfo?: string, locale?: string): string | null;
-  transform(value: null | undefined, digitsInfo?: string, locale?: string): null;
-  transform(
-    value: number | string | null | undefined,
-    digitsInfo?: string,
-    locale?: string,
-  ): string | null;
   /**
    * @param value The value to be formatted.
    * @param digitsInfo Sets digit and decimal representation.
@@ -97,6 +90,13 @@ export class DecimalPipe implements PipeTransform {
    * @param locale Specifies what locale format rules to use.
    * [See more](#locale).
    */
+  transform(value: number | string, digitsInfo?: string, locale?: string): string | null;
+  transform(value: null | undefined, digitsInfo?: string, locale?: string): null;
+  transform(
+    value: number | string | null | undefined,
+    digitsInfo?: string,
+    locale?: string,
+  ): string | null;
   transform(
     value: number | string | null | undefined,
     digitsInfo?: string,