diff --git a/bundles/org.openhab.binding.groheondus/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.groheondus/src/main/resources/OH-INF/thing/thing-types.xml
index b7fef7a5f..745038ce4 100644
--- a/bundles/org.openhab.binding.groheondus/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.groheondus/src/main/resources/OH-INF/thing/thing-types.xml
@@ -13,11 +13,9 @@
 			<parameter name="username" type="text" required="false">
 				<label>Username</label>
 				<description>Username as used in the GROHE ONDUS App, usually your e-mail address.</description>
-				<required>true</required>
 			</parameter>
 			<parameter name="password" type="text" required="false">
 				<label>Password</label>
-				<required>true</required>
 				<context>password</context>
 				<description>Password as used in the GROHE ONDUS App.</description>
 			</parameter>