diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/InlineModelResolver.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/InlineModelResolver.java
index 63d937e2d1b..f11a6da3b12 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/InlineModelResolver.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/InlineModelResolver.java
@@ -408,8 +408,8 @@ public class InlineModelResolver {
 
     private String uniqueName(String key) {
         if (key == null) {
-            key = "NULL_UNIQUE_NAME";
-            LOGGER.warn("null key found. Default to NULL_UNIQUE_NAME");
+            key = "InlineObject";
+            LOGGER.warn("Found an inline schema without the `title` attribute. Default the model name to InlineObject instead. To have better control of the model naming, define the model separately so that it can be reused throughout the spec.");
         }
         int count = 0;
         boolean done = false;
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/InlineModelResolverTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/InlineModelResolverTest.java
index 92018e3f50c..52350b121f6 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/InlineModelResolverTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/InlineModelResolverTest.java
@@ -378,7 +378,7 @@ public class InlineModelResolverTest {
 
         ArraySchema requestBody = (ArraySchema) mediaType.getSchema();
         assertNotNull(requestBody.getItems().get$ref());
-        assertEquals("#/components/schemas/NULL_UNIQUE_NAME", requestBody.getItems().get$ref());
+        assertEquals("#/components/schemas/InlineObject", requestBody.getItems().get$ref());
 
         Schema items = ModelUtils.getReferencedSchema(openAPI, ((ArraySchema) mediaType.getSchema()).getItems());
         assertTrue(items.getProperties().get("street") instanceof StringSchema);