diff --git a/bundles/org.openhab.core.io.net/src/main/java/org/openhab/core/io/net/http/HttpUtil.java b/bundles/org.openhab.core.io.net/src/main/java/org/openhab/core/io/net/http/HttpUtil.java
index 37c980752..9cfe66ca3 100644
--- a/bundles/org.openhab.core.io.net/src/main/java/org/openhab/core/io/net/http/HttpUtil.java
+++ b/bundles/org.openhab.core.io.net/src/main/java/org/openhab/core/io/net/http/HttpUtil.java
@@ -213,7 +213,11 @@ public class HttpUtil {
 
         if (httpHeaders != null) {
             for (String httpHeaderKey : httpHeaders.stringPropertyNames()) {
-                request.header(httpHeaderKey, httpHeaders.getProperty(httpHeaderKey));
+                if (httpHeaderKey.equalsIgnoreCase(HttpHeader.USER_AGENT.toString())) {
+                    request.agent(httpHeaders.getProperty(httpHeaderKey));
+                } else {
+                    request.header(httpHeaderKey, httpHeaders.getProperty(httpHeaderKey));
+                }
             }
         }