diff --git a/src/main/java/eu/siacs/conversations/Config.java b/src/main/java/eu/siacs/conversations/Config.java
index 6b57f7ea8..b4dcf209d 100644
--- a/src/main/java/eu/siacs/conversations/Config.java
+++ b/src/main/java/eu/siacs/conversations/Config.java
@@ -13,6 +13,8 @@ public final class Config {
 	public static final boolean DISALLOW_REGISTRATION_IN_UI = false; //hide the register checkbox
 	public static final boolean HIDE_PGP_IN_UI = false; //some more consumer focused clients might want to disable OpenPGP
 
+	public static final boolean LEGACY_NAMESPACE_HTTP_UPLOAD = false;
+
 	public static final int PING_MAX_INTERVAL = 300;
 	public static final int PING_MIN_INTERVAL = 30;
 	public static final int PING_TIMEOUT = 15;
diff --git a/src/main/java/eu/siacs/conversations/utils/Xmlns.java b/src/main/java/eu/siacs/conversations/utils/Xmlns.java
index de0a29ce2..a19ec791f 100644
--- a/src/main/java/eu/siacs/conversations/utils/Xmlns.java
+++ b/src/main/java/eu/siacs/conversations/utils/Xmlns.java
@@ -1,9 +1,11 @@
 package eu.siacs.conversations.utils;
 
+import eu.siacs.conversations.Config;
+
 public final class Xmlns {
 	public static final String BLOCKING = "urn:xmpp:blocking";
 	public static final String ROSTER = "jabber:iq:roster";
 	public static final String REGISTER = "jabber:iq:register";
 	public static final String BYTE_STREAMS = "http://jabber.org/protocol/bytestreams";
-	public static final String HTTP_UPLOAD = "urn:xmpp:http:upload";
+	public static final String HTTP_UPLOAD = Config.LEGACY_NAMESPACE_HTTP_UPLOAD ? "eu:siacs:conversations:http:upload" : "urn:xmpp:http:upload";
 }