diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/InlineModelResolver.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/InlineModelResolver.java
index d2f47f2a6f6d..f727560210ad 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/InlineModelResolver.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/InlineModelResolver.java
@@ -45,13 +45,15 @@ public class InlineModelResolver {
                                 if (bp.getSchema() != null) {
                                     Model model = bp.getSchema();
                                     if(model instanceof ModelImpl) {
-                                        String modelName = uniqueName(bp.getName());
                                         ModelImpl obj = (ModelImpl) model;
-                                        flattenProperties(obj.getProperties(), pathname);
+                                        if (obj.getType() == null || "object".equals(obj.getType())) {
+                                            String modelName = uniqueName(bp.getName());
+                                            flattenProperties(obj.getProperties(), pathname);
 
-                                        bp.setSchema(new RefModel(modelName));
-                                        addGenerated(modelName, model);
-                                        swagger.addDefinition(modelName, model);
+                                            bp.setSchema(new RefModel(modelName));
+                                            addGenerated(modelName, model);
+                                            swagger.addDefinition(modelName, model);
+                                        }
                                     }
                                     else if (model instanceof ArrayModel) {
                                         ArrayModel am = (ArrayModel) model;
diff --git a/modules/swagger-codegen/src/test/java/io/swagger/codegen/InlineModelResolverTest.java b/modules/swagger-codegen/src/test/java/io/swagger/codegen/InlineModelResolverTest.java
index fa1bf8bab401..68d64562eba6 100644
--- a/modules/swagger-codegen/src/test/java/io/swagger/codegen/InlineModelResolverTest.java
+++ b/modules/swagger-codegen/src/test/java/io/swagger/codegen/InlineModelResolverTest.java
@@ -127,6 +127,28 @@ public class InlineModelResolverTest {
         assertNotNull(impl.getProperties().get("address"));
     }
 
+    @Test
+    public void notResolveNonModelBodyParameter() throws Exception {
+        Swagger swagger = new Swagger();
+
+        swagger.path("/hello", new Path()
+                .get(new Operation()
+                        .parameter(new BodyParameter()
+                                .name("body")
+                                .schema(new ModelImpl()
+                                        .type("string")
+                                        .format("binary")))));
+
+        new InlineModelResolver().flatten(swagger);
+
+        Operation operation = swagger.getPaths().get("/hello").getGet();
+        BodyParameter bp = (BodyParameter)operation.getParameters().get(0);
+        assertTrue(bp.getSchema() instanceof ModelImpl);
+        ModelImpl m = (ModelImpl) bp.getSchema();
+        assertEquals("string", m.getType());
+        assertEquals("binary", m.getFormat());
+    }
+
     @Test
     public void resolveInlineArrayBodyParameter() throws Exception {
         Swagger swagger = new Swagger();