diff --git a/src/test/resources/InstanceIdentifierInvalidIdentifier.yang b/src/test/resources/InstanceIdentifierInvalidIdentifier.yang
new file mode 100644
index 0000000..0bbe2f1
--- /dev/null
+++ b/src/test/resources/InstanceIdentifierInvalidIdentifier.yang
@@ -0,0 +1,10 @@
+module Test {
+    yang-version 1;
+    namespace http://huawei.com;
+    prefix Ant;
+    container currentcheck {
+        leaf invalid-interval {
+            type instance-identifier;
+        }
+    }
+}