diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java
index b0cb8d1006c..b0a2fd34292 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java
@@ -284,7 +284,7 @@ public class DefaultGenerator extends AbstractGenerator implements Generator {
                         allProcessedModels.put(name, models);
 
                     } catch (Exception e) {
-                        throw new RuntimeException("Could not process model '" + name + "'", e);
+                        throw new RuntimeException("Could not process model '" + name + "'" + ".Please make sure that your schema is correct!", e);
                     }
                 }