diff --git a/bundles/org.openhab.binding.http/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.http/src/main/resources/OH-INF/thing/thing-types.xml
index 060a77929..e458d796f 100644
--- a/bundles/org.openhab.binding.http/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.http/src/main/resources/OH-INF/thing/thing-types.xml
@@ -78,6 +78,7 @@
 			<parameter name="headers" type="text" multiple="true">
 				<label>Headers</label>
 				<description>Additional headers send along with the request</description>
+				<limitToOptions>false</limitToOptions>
 				<advanced>true</advanced>
 			</parameter>
 			<parameter name="ignoreSSLErrors" type="boolean">