diff --git a/li.strolch.service/src/main/java/li/strolch/service/StringServiceArgument.java b/li.strolch.service/src/main/java/li/strolch/service/StringServiceArgument.java
new file mode 100644
index 000000000..f5cf90968
--- /dev/null
+++ b/li.strolch.service/src/main/java/li/strolch/service/StringServiceArgument.java
@@ -0,0 +1,8 @@
+package li.strolch.service;
+
+import li.strolch.service.api.ServiceArgument;
+
+public class StringServiceArgument extends ServiceArgument {
+	private static final long serialVersionUID = 1L;
+	public String value;
+}