diff --git a/src/de/inetsoftware/jwebassembly/binary/ExternalKind.java b/src/de/inetsoftware/jwebassembly/binary/ExternalKind.java
new file mode 100644
index 0000000..efbdb76
--- /dev/null
+++ b/src/de/inetsoftware/jwebassembly/binary/ExternalKind.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2017 Volker Berlin (i-net software)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package de.inetsoftware.jwebassembly.binary;
+
+/**
+ * A single-byte unsigned integer indicating the kind of definition being imported or defined.
+ * 
+ * @author Volker Berlin
+ *
+ */
+enum ExternalKind {
+    Function,
+    Table,
+    Memory,
+    Global,
+}