diff --git a/packages/compiler-cli/src/ngtsc/transform/src/declaration.ts b/packages/compiler-cli/src/ngtsc/transform/src/declaration.ts
index 495886d45e..dec8eb96f2 100644
--- a/packages/compiler-cli/src/ngtsc/transform/src/declaration.ts
+++ b/packages/compiler-cli/src/ngtsc/transform/src/declaration.ts
@@ -20,8 +20,8 @@ export class DtsFileTransformer {
   private ivyFields = new Map<string, CompileResult[]>();
   private imports: ImportManager;
 
-  constructor(private coreImportsFrom: ts.SourceFile|null) {
-    this.imports = new ImportManager(coreImportsFrom !== null);
+  constructor(private coreImportsFrom: ts.SourceFile|null, importPrefix?: string) {
+    this.imports = new ImportManager(coreImportsFrom !== null, importPrefix);
   }
 
   /**
@@ -62,4 +62,4 @@ export class DtsFileTransformer {
 
     return dts;
   }
-}
\ No newline at end of file
+}