diff --git a/src/main/java/edu/harvard/iq/dataverse/openapi/OpenAPI.java b/src/main/java/edu/harvard/iq/dataverse/openapi/OpenAPI.java
index 01071afe6a6..1da9611050d 100644
--- a/src/main/java/edu/harvard/iq/dataverse/openapi/OpenAPI.java
+++ b/src/main/java/edu/harvard/iq/dataverse/openapi/OpenAPI.java
@@ -5,6 +5,10 @@
 import java.nio.charset.StandardCharsets;
 import java.util.*;
 import java.util.logging.*;
+
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonObjectBuilder;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.*;
@@ -59,10 +63,22 @@ protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws Se
         } else  if (YAML_FORMAT.equals(format)){
             resp.setContentType(MediaType.TEXT_PLAIN_TYPE.toString());
         } else {
+            
             List<String> args = Arrays.asList(format);
             String bundleResponse = BundleUtil.getStringFromBundle("openapi.exception.invalid.format", args);
-            resp.sendError(Response.Status.UNSUPPORTED_MEDIA_TYPE.getStatusCode(),
-                            bundleResponse);
+
+            JsonObject errorResponse = Json.createObjectBuilder()
+                .add("status", "ERROR")
+                .add("code", HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE)
+                .add("message", bundleResponse)
+                .build();
+
+            resp.setContentType(MediaType.APPLICATION_JSON_TYPE.toString());
+            resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
+
+            PrintWriter responseWriter = resp.getWriter();
+            responseWriter.println(errorResponse.toString());
+            responseWriter.flush();
             return;
         }
 
diff --git a/src/test/java/edu/harvard/iq/dataverse/api/InfoIT.java b/src/test/java/edu/harvard/iq/dataverse/api/InfoIT.java
index 23b9b87e393..5e436dd0e98 100644
--- a/src/test/java/edu/harvard/iq/dataverse/api/InfoIT.java
+++ b/src/test/java/edu/harvard/iq/dataverse/api/InfoIT.java
@@ -81,24 +81,6 @@ public void testGetZipDownloadLimit() {
                 .body("data", notNullValue());
     }
 
-    @Test
-    public void testOpenApiDefinition(){
-        Response response = given()
-                .get("/api/info/openapi/jasonInvalid");
-        response.prettyPrint();
-        response.then().assertThat().statusCode(BAD_REQUEST.getStatusCode());
- 
-        String jsonDefinitionFileContent = UtilIT.getDatasetJson("src/main/resources/edu/harvard/iq/dataverse/openapi/dataverse_openapi.json");
-        response = given().get("/api/info/openapi/json");
-        response.then().assertThat().statusCode(OK.getStatusCode())
-                .body(equalTo(jsonDefinitionFileContent));
-       
-        String yamlFileContent = UtilIT.getDatasetJson("src/main/resources/edu/harvard/iq/dataverse/openapi/dataverse_openapi.yaml");
-        response = given().get("/api/info/openapi/yaml");
-        response.then().assertThat().statusCode(OK.getStatusCode())
-                .body(equalTo(yamlFileContent));
-        
-    }
 
     private void testSettingEndpoint(SettingsServiceBean.Key settingKey, String testSettingValue) {
         String endpoint =  "/api/info/settings/" + settingKey;