diff --git a/src/handlers/input-type.ts b/src/handlers/input-type.ts
index bb2c11a5..79356e65 100644
--- a/src/handlers/input-type.ts
+++ b/src/handlers/input-type.ts
@@ -56,6 +56,8 @@ export function inputType(
     const modelFieldSettings = model && fieldSettings.get(model.name);
     const moduleSpecifier = '@nestjs/graphql';
 
+    // console.log('sourceFile.getBaseName()', sourceFile.getBaseName());
+
     importDeclarations
         .set('Field', {
             namedImports: [{ name: 'Field' }],
@@ -77,6 +79,12 @@ export function inputType(
         eventEmitter.emitSync('BeforeGenerateField', field, args);
 
         const { inputTypes, isRequired, name } = field;
+
+        if (inputTypes.length === 0) {
+            // No types
+            continue;
+        }
+
         const usePattern = useInputType?.ALL || useInputType?.[name];
         const graphqlInputType = getGraphqlInputType(inputTypes, usePattern);
         const { isList, location, type } = graphqlInputType;
diff --git a/src/test/generate.spec.ts b/src/test/generate.spec.ts
index 3936f123..39a128f9 100644
--- a/src/test/generate.spec.ts
+++ b/src/test/generate.spec.ts
@@ -2557,3 +2557,26 @@ describe('configuration custom scalars', () => {
         });
     });
 });
+
+describe('single model and field mongodb', () => {
+    before(async () => {
+        ({ project, sourceFiles } = await testGenerate({
+            provider: 'mongodb',
+            schema: `
+                model Product {
+                  id String @id @default(auto()) @map("_id") @db.ObjectId
+                }
+            `,
+            options: [`outputFilePattern = "{name}.{type}.ts"`],
+        }));
+    });
+
+    it('example input update type', () => {
+        const s = testSourceFile({
+            project,
+            file: 'update-one-product.args.ts',
+        });
+        // data field is missing because of single id field
+        expect(s.classFile.getProperties()).toHaveLength(1);
+    });
+});
diff --git a/src/test/test-generate.ts b/src/test/test-generate.ts
index 7d915558..468ffa75 100644
--- a/src/test/test-generate.ts
+++ b/src/test/test-generate.ts
@@ -19,6 +19,7 @@ const { '@prisma/generator-helper': generatorVersion } =
 export async function testGenerate(args: {
     schema: string;
     options?: string[];
+    provider?: 'postgresql' | 'mongodb';
     createSouceFile?: {
         text: string;
         name: string;
@@ -26,7 +27,7 @@ export async function testGenerate(args: {
     };
     onConnect?: (emitter: AwaitEventEmitter) => void;
 }) {
-    const { schema, options, createSouceFile, onConnect } = args;
+    const { schema, options, provider, createSouceFile, onConnect } = args;
     let project: Project | undefined;
     const connectCallback = (emitter: AwaitEventEmitter) => {
         onConnect && onConnect(emitter);
@@ -53,7 +54,7 @@ export async function testGenerate(args: {
         });
     };
     await generate({
-        ...(await createGeneratorOptions(schema, options)),
+        ...(await createGeneratorOptions(schema, options, provider)),
         skipAddOutputSourceFiles: true,
         connectCallback,
     });
@@ -119,10 +120,11 @@ export async function testGenerate(args: {
 async function createGeneratorOptions(
     schema: string,
     options?: string[],
+    provider: 'postgresql' | 'mongodb' = 'postgresql',
 ): Promise<GeneratorOptions & { prismaClientDmmf: DMMF.Document }> {
     const schemaHeader = `
         datasource db {
-            provider = "postgresql"
+            provider = "${provider}"
             url = env("DATABASE_URL")
         }
         generator client {