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-rw-r--r--interface-definitions/include/generic-description.xml.i3
1 files changed, 3 insertions, 0 deletions
diff --git a/interface-definitions/include/generic-description.xml.i b/interface-definitions/include/generic-description.xml.i
index 03fc564e6..31d540317 100644
--- a/interface-definitions/include/generic-description.xml.i
+++ b/interface-definitions/include/generic-description.xml.i
@@ -6,6 +6,9 @@
<format>txt</format>
<description>Description</description>
</valueHelp>
+ <constraint>
+ <regex>[a-zA-Z0-9_\-]+</regex>
+ </constraint>
</properties>
</leafNode>
<!-- include end -->