diff --git a/packages/compiler-cli/src/ngtsc/core/api/src/options.ts b/packages/compiler-cli/src/ngtsc/core/api/src/options.ts
index b0878179a58..113f16af74f 100644
--- a/packages/compiler-cli/src/ngtsc/core/api/src/options.ts
+++ b/packages/compiler-cli/src/ngtsc/core/api/src/options.ts
@@ -37,6 +37,12 @@ export interface TestOnlyOptions {
    */
   _enableTemplateTypeChecker?: boolean;
 
+  /**
+   * Whether components that are poisoned should still be processed.
+   * E.g. for generation of type check blocks and diagnostics.
+   */
+  _compilePoisedComponents?: boolean;
+
   /**
    * An option to enable ngtsc's internal performance tracing.
    *
diff --git a/packages/compiler-cli/src/ngtsc/core/src/compiler.ts b/packages/compiler-cli/src/ngtsc/core/src/compiler.ts
index 20d03cd6041..97f4be25ff1 100644
--- a/packages/compiler-cli/src/ngtsc/core/src/compiler.ts
+++ b/packages/compiler-cli/src/ngtsc/core/src/compiler.ts
@@ -454,8 +454,9 @@ export class NgCompiler {
     private livePerfRecorder: ActivePerfRecorder,
   ) {
     this.delegatingPerfRecorder = new DelegatingPerfRecorder(this.perfRecorder);
+    this.usePoisonedData = usePoisonedData || !!options._compilePoisedComponents;
     this.enableTemplateTypeChecker =
-      enableTemplateTypeChecker || (options['_enableTemplateTypeChecker'] ?? false);
+      enableTemplateTypeChecker || !!options._enableTemplateTypeChecker;
     // TODO(crisbeto): remove this flag and base `enableBlockSyntax` on the `angularCoreVersion`.
     this.enableBlockSyntax = options['_enableBlockSyntax'] ?? true;
     this.enableLetSyntax = options['_enableLetSyntax'] ?? true;