diff --git a/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache b/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
index 4736f95fa96f..efe1c2b7d201 100644
--- a/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
@@ -56,7 +56,7 @@ export const {{classname}}AxiosParamCreator = function (configuration?: Configur
             const localVarRequestOptions = { method: '{{httpMethod}}', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;{{#vendorExtensions}}{{#hasFormParams}}
-            const localVarFormParams = new {{^multipartFormData}}URLSearchParams(){{/multipartFormData}}{{#multipartFormData}}(configuration?.formDataCtor || FormData)(){{/multipartFormData}};{{/hasFormParams}}{{/vendorExtensions}}
+            const localVarFormParams = new {{^multipartFormData}}URLSearchParams(){{/multipartFormData}}{{#multipartFormData}}((configuration && configuration.formDataCtor) || FormData)(){{/multipartFormData}};{{/hasFormParams}}{{/vendorExtensions}}
 
     {{#authMethods}}
             // authentication {{name}} required
diff --git a/samples/client/petstore/typescript-axios/builds/default/api.ts b/samples/client/petstore/typescript-axios/builds/default/api.ts
index be7921357062..2845a9da8ded 100644
--- a/samples/client/petstore/typescript-axios/builds/default/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/default/api.ts
@@ -672,7 +672,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/es6-target/api.ts b/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
index be7921357062..2845a9da8ded 100644
--- a/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
@@ -672,7 +672,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts b/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
index 39d357c0a9eb..5830ec5c7c96 100644
--- a/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
@@ -721,7 +721,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts b/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
index 8cd7b34a128a..570367e24fce 100644
--- a/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
@@ -672,7 +672,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
index c2fa2277d9b7..9f12dfa6582b 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
@@ -448,7 +448,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
index be7921357062..2845a9da8ded 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
@@ -672,7 +672,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required
diff --git a/samples/client/petstore/typescript-axios/builds/with-single-request-parameters/api.ts b/samples/client/petstore/typescript-axios/builds/with-single-request-parameters/api.ts
index cba4c887e587..8fc8ff63781f 100644
--- a/samples/client/petstore/typescript-axios/builds/with-single-request-parameters/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-single-request-parameters/api.ts
@@ -672,7 +672,7 @@ export const PetApiAxiosParamCreator = function (configuration?: Configuration)
             const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
             const localVarHeaderParameter = {} as any;
             const localVarQueryParameter = {} as any;
-            const localVarFormParams = new (configuration?.formDataCtor || FormData)();
+            const localVarFormParams = new ((configuration && configuration.formDataCtor) || FormData)();
 
             // authentication petstore_auth required
             // oauth required