diff --git a/modules/openapi-generator/src/main/resources/typescript/api/api.mustache b/modules/openapi-generator/src/main/resources/typescript/api/api.mustache
index 0ad7fa1ca6863..65ae970cd8b5c 100644
--- a/modules/openapi-generator/src/main/resources/typescript/api/api.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript/api/api.mustache
@@ -78,9 +78,7 @@ export class {{classname}}RequestFactory extends BaseAPIRequestFactory {
             }
             {{/isArray}}
             {{^isArray}}
-            for (const key of Object.keys(serializedParams)) {
-                requestContext.setQueryParam(key, serializedParams[key]);
-            }
+            requestContext.setQueryParam("{{baseName}}", serializedParams);
             {{/isArray}}
             {{/isExplode}}
             {{^isExplode}}
@@ -181,7 +179,7 @@ export class {{classname}}RequestFactory extends BaseAPIRequestFactory {
             await authMethod?.applySecurityAuthentication(requestContext);
         }
         {{/authMethods}}
-        
+
         {{^useInversify}}
         const defaultAuth: SecurityAuthentication | undefined = _options?.authMethods?.default || this.configuration?.authMethods?.default
         if (defaultAuth?.applySecurityAuthentication) {