diff --git a/packages/compiler-cli/src/ngtsc/annotations/src/component.ts b/packages/compiler-cli/src/ngtsc/annotations/src/component.ts
index 0501886c56c..07ea536cb71 100644
--- a/packages/compiler-cli/src/ngtsc/annotations/src/component.ts
+++ b/packages/compiler-cli/src/ngtsc/annotations/src/component.ts
@@ -617,7 +617,7 @@ export class ComponentDecoratorHandler implements
   extendedTemplateCheck(
       component: ts.ClassDeclaration,
       extendedTemplateChecker: ExtendedTemplateChecker): ts.Diagnostic[] {
-    return extendedTemplateChecker.getExtendedTemplateDiagnosticsForComponent(component);
+    return extendedTemplateChecker.getDiagnosticsForComponent(component);
   }
 
   resolve(
diff --git a/packages/compiler-cli/src/ngtsc/typecheck/extended/api/extended_template_checker.ts b/packages/compiler-cli/src/ngtsc/typecheck/extended/api/extended_template_checker.ts
index efc336588ee..0db27bdc1a3 100644
--- a/packages/compiler-cli/src/ngtsc/typecheck/extended/api/extended_template_checker.ts
+++ b/packages/compiler-cli/src/ngtsc/typecheck/extended/api/extended_template_checker.ts
@@ -16,5 +16,5 @@ export interface ExtendedTemplateChecker {
   /**
    * Run `TemplateCheck`s for a component and return the generated `ts.Diagnostic`s.
    */
-  getExtendedTemplateDiagnosticsForComponent(component: ts.ClassDeclaration): TemplateDiagnostic[];
+  getDiagnosticsForComponent(component: ts.ClassDeclaration): TemplateDiagnostic[];
 }
diff --git a/packages/compiler-cli/src/ngtsc/typecheck/extended/src/extended_template_checker.ts b/packages/compiler-cli/src/ngtsc/typecheck/extended/src/extended_template_checker.ts
index ae87abbac22..c6e139000f0 100644
--- a/packages/compiler-cli/src/ngtsc/typecheck/extended/src/extended_template_checker.ts
+++ b/packages/compiler-cli/src/ngtsc/typecheck/extended/src/extended_template_checker.ts
@@ -18,7 +18,7 @@ export class ExtendedTemplateCheckerImpl implements ExtendedTemplateChecker {
       private readonly typeChecker: ts.TypeChecker,
       private readonly templateChecks: TemplateCheck<ErrorCode>[]) {}
 
-  getExtendedTemplateDiagnosticsForComponent(component: ts.ClassDeclaration): TemplateDiagnostic[] {
+  getDiagnosticsForComponent(component: ts.ClassDeclaration): TemplateDiagnostic[] {
     const template = this.templateTypeChecker.getTemplate(component);
     // Skip checks if component has no template. This can happen if the user writes a
     // `@Component()` but doesn't add the template, could happen in the language service
diff --git a/packages/compiler-cli/src/ngtsc/typecheck/extended/test/template_checks/invalid_banana_in_box/spec.ts b/packages/compiler-cli/src/ngtsc/typecheck/extended/test/template_checks/invalid_banana_in_box/spec.ts
index 1098bef6f1b..0a243708f4d 100644
--- a/packages/compiler-cli/src/ngtsc/typecheck/extended/test/template_checks/invalid_banana_in_box/spec.ts
+++ b/packages/compiler-cli/src/ngtsc/typecheck/extended/test/template_checks/invalid_banana_in_box/spec.ts
@@ -30,7 +30,7 @@ runInEachFileSystem(() => {
       const component = getClass(sf, 'TestCmp');
       const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
           templateTypeChecker, program.getTypeChecker(), [new InvalidBananaInBoxCheck()]);
-      const diags = extendedTemplateChecker.getExtendedTemplateDiagnosticsForComponent(component);
+      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
       expect(diags.length).toBe(1);
       expect(diags[0].category).toBe(ts.DiagnosticCategory.Warning);
       expect(diags[0].code).toBe(ngErrorCode(ErrorCode.INVALID_BANANA_IN_BOX));
@@ -50,7 +50,7 @@ runInEachFileSystem(() => {
       const component = getClass(sf, 'TestCmp');
       const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
           templateTypeChecker, program.getTypeChecker(), [new InvalidBananaInBoxCheck()]);
-      const diags = extendedTemplateChecker.getExtendedTemplateDiagnosticsForComponent(component);
+      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
       expect(diags.length).toBe(0);
     });
 
@@ -68,8 +68,7 @@ runInEachFileSystem(() => {
          const component = getClass(sf, 'TestCmp');
          const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
              templateTypeChecker, program.getTypeChecker(), [new InvalidBananaInBoxCheck()]);
-         const diags =
-             extendedTemplateChecker.getExtendedTemplateDiagnosticsForComponent(component);
+         const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
          expect(diags.length).toBe(0);
        });
 
@@ -91,7 +90,7 @@ runInEachFileSystem(() => {
       const component = getClass(sf, 'TestCmp');
       const extendedTemplateChecker = new ExtendedTemplateCheckerImpl(
           templateTypeChecker, program.getTypeChecker(), [new InvalidBananaInBoxCheck()]);
-      const diags = extendedTemplateChecker.getExtendedTemplateDiagnosticsForComponent(component);
+      const diags = extendedTemplateChecker.getDiagnosticsForComponent(component);
       expect(diags.length).toBe(2);
       expect(diags[0].category).toBe(ts.DiagnosticCategory.Warning);
       expect(diags[0].code).toBe(ngErrorCode(ErrorCode.INVALID_BANANA_IN_BOX));