diff --git a/smack-core/src/main/java/org/jivesoftware/smack/provider/ProviderManager.java b/smack-core/src/main/java/org/jivesoftware/smack/provider/ProviderManager.java
index 213b32e36..1b8abc953 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/provider/ProviderManager.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/provider/ProviderManager.java
@@ -123,6 +123,7 @@ public final class ProviderManager {
         SmackConfiguration.getVersion();
     }
 
+    @SuppressWarnings("unchecked")
     public static void addLoader(ProviderLoader loader) {
         if (loader.getIQProviderInfo() != null) {
             for (IQProviderInfo info : loader.getIQProviderInfo()) {
@@ -135,6 +136,13 @@ public final class ProviderManager {
                 addExtensionProvider(info.getElementName(), info.getNamespace(), info.getProvider());
             }
         }
+
+        if (loader.getStreamFeatureProviderInfo() != null) {
+            for (StreamFeatureProviderInfo info : loader.getStreamFeatureProviderInfo()) {
+                addStreamFeatureProvider(info.getElementName(), info.getNamespace(),
+                                (PacketExtensionProvider<PacketExtension>) info.getProvider());
+            }
+        }
     }
     
     /**