diff --git a/packages/compiler-cli/ngcc/src/host/commonjs_host.ts b/packages/compiler-cli/ngcc/src/host/commonjs_host.ts
index f752412df3..a5ac0a77b5 100644
--- a/packages/compiler-cli/ngcc/src/host/commonjs_host.ts
+++ b/packages/compiler-cli/ngcc/src/host/commonjs_host.ts
@@ -26,6 +26,11 @@ export class CommonJsReflectionHost extends Esm5ReflectionHost {
   }
 
   getImportOfIdentifier(id: ts.Identifier): Import|null {
+    const superImport = super.getImportOfIdentifier(id);
+    if (superImport !== null) {
+      return superImport;
+    }
+
     const requireCall = this.findCommonJsImport(id);
     if (requireCall === null) {
       return null;
diff --git a/packages/compiler-cli/ngcc/src/host/umd_host.ts b/packages/compiler-cli/ngcc/src/host/umd_host.ts
index 89b401106d..5bf2060580 100644
--- a/packages/compiler-cli/ngcc/src/host/umd_host.ts
+++ b/packages/compiler-cli/ngcc/src/host/umd_host.ts
@@ -25,6 +25,11 @@ export class UmdReflectionHost extends Esm5ReflectionHost {
   }
 
   getImportOfIdentifier(id: ts.Identifier): Import|null {
+    const superImport = super.getImportOfIdentifier(id);
+    if (superImport !== null) {
+      return superImport;
+    }
+
     const importParameter = this.findUmdImportParameter(id);
     const from = importParameter && this.getUmdImportPath(importParameter);
     return from !== null ? {from, name: id.text} : null;
diff --git a/packages/compiler-cli/ngcc/test/host/commonjs_host_spec.ts b/packages/compiler-cli/ngcc/test/host/commonjs_host_spec.ts
index a688fcf630..67e6c93102 100644
--- a/packages/compiler-cli/ngcc/test/host/commonjs_host_spec.ts
+++ b/packages/compiler-cli/ngcc/test/host/commonjs_host_spec.ts
@@ -9,7 +9,7 @@ import * as ts from 'typescript';
 
 import {absoluteFrom, getFileSystem, getSourceFileOrError} from '../../../src/ngtsc/file_system';
 import {TestFile, runInEachFileSystem} from '../../../src/ngtsc/file_system/testing';
-import {ClassMemberKind, CtorParameter, Import, InlineDeclaration, isNamedClassDeclaration, isNamedFunctionDeclaration, isNamedVariableDeclaration} from '../../../src/ngtsc/reflection';
+import {ClassMemberKind, CtorParameter, InlineDeclaration, isNamedClassDeclaration, isNamedFunctionDeclaration, isNamedVariableDeclaration} from '../../../src/ngtsc/reflection';
 import {getDeclaration} from '../../../src/ngtsc/testing';
 import {loadFakeCore, loadTestFiles} from '../../../test/helpers';
 import {CommonJsReflectionHost} from '../../src/host/commonjs_host';
@@ -1558,6 +1558,30 @@ exports.ExternalModule = ExternalModule;
           expect(importOfIdent).toEqual({name: 'a', from: './file_a'});
         });
 
+        it('should find the import of an identifier in a declaration file', () => {
+          loadTestFiles([
+            {
+              name: _('/index.d.ts'),
+              contents: `
+                import {MyClass} from './myclass.d.ts';
+                export declare const a: MyClass;`
+            },
+            {
+              name: _('/myclass.d.ts'),
+              contents: `export declare class MyClass {}`,
+            }
+          ]);
+          const {program, host: compilerHost} = makeTestBundleProgram(_('/index.d.ts'));
+          const host = new CommonJsReflectionHost(new MockLogger(), false, program, compilerHost);
+          const variableNode =
+              getDeclaration(program, _('/index.d.ts'), 'a', isNamedVariableDeclaration);
+          const identifier =
+              ((variableNode.type as ts.TypeReferenceNode).typeName as ts.Identifier);
+
+          const importOfIdent = host.getImportOfIdentifier(identifier !);
+          expect(importOfIdent).toEqual({name: 'MyClass', from: './myclass.d.ts'});
+        });
+
         it('should return null if the identifier was not imported', () => {
           loadTestFiles(IMPORTS_FILES);
           const {program, host: compilerHost} = makeTestBundleProgram(_('/index.js'));
diff --git a/packages/compiler-cli/ngcc/test/host/umd_host_spec.ts b/packages/compiler-cli/ngcc/test/host/umd_host_spec.ts
index 74566a1bee..52a5ec58b9 100644
--- a/packages/compiler-cli/ngcc/test/host/umd_host_spec.ts
+++ b/packages/compiler-cli/ngcc/test/host/umd_host_spec.ts
@@ -13,7 +13,6 @@ import {TestFile, runInEachFileSystem} from '../../../src/ngtsc/file_system/test
 import {ClassMemberKind, CtorParameter, Import, isNamedClassDeclaration, isNamedFunctionDeclaration, isNamedVariableDeclaration} from '../../../src/ngtsc/reflection';
 import {getDeclaration} from '../../../src/ngtsc/testing';
 import {loadFakeCore, loadTestFiles} from '../../../test/helpers';
-import {Esm2015ReflectionHost} from '../../src/host/esm2015_host';
 import {getIifeBody} from '../../src/host/esm5_host';
 import {UmdReflectionHost} from '../../src/host/umd_host';
 import {MockLogger} from '../helpers/mock_logger';
@@ -1658,6 +1657,30 @@ runInEachFileSystem(() => {
           expect(importOfIdent).toEqual({name: 'a', from: './file_a'});
         });
 
+        it('should find the import of an identifier in a declaration file', () => {
+          loadTestFiles([
+            {
+              name: _('/index.d.ts'),
+              contents: `
+                import {MyClass} from './myclass.d.ts';
+                export declare const a: MyClass;`
+            },
+            {
+              name: _('/myclass.d.ts'),
+              contents: `export declare class MyClass {}`,
+            }
+          ]);
+          const {program, host: compilerHost} = makeTestBundleProgram(_('/index.d.ts'));
+          const host = new UmdReflectionHost(new MockLogger(), false, program, compilerHost);
+          const variableNode =
+              getDeclaration(program, _('/index.d.ts'), 'a', isNamedVariableDeclaration);
+          const identifier =
+              ((variableNode.type as ts.TypeReferenceNode).typeName as ts.Identifier);
+
+          const importOfIdent = host.getImportOfIdentifier(identifier !);
+          expect(importOfIdent).toEqual({name: 'MyClass', from: './myclass.d.ts'});
+        });
+
         it('should return null if the identifier was not imported', () => {
           loadTestFiles(IMPORTS_FILES);
           const {program, host: compilerHost} = makeTestBundleProgram(_('/index.js'));