diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
index 5c3a144..9e46aef 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
@@ -24,6 +24,7 @@
 import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
 import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
 
 /**
@@ -85,7 +86,7 @@
     public TempJavaCodeFragmentFiles getTempJavaCodeFragmentFiles() {
         if (tempFileHandle == null) {
             throw new RuntimeException("Missing temp file hand for current node "
-                    + getJavaFileInfo().getJavaName());
+                    + getCapitalCase(getJavaFileInfo().getJavaName()));
         }
         return tempFileHandle;
     }