diff --git a/src/main/java/nl/goodbytes/xmpp/xep0363/SlotManager.java b/src/main/java/nl/goodbytes/xmpp/xep0363/SlotManager.java
index 82ea585..7737837 100644
--- a/src/main/java/nl/goodbytes/xmpp/xep0363/SlotManager.java
+++ b/src/main/java/nl/goodbytes/xmpp/xep0363/SlotManager.java
@@ -63,12 +63,12 @@ public void initialize( final SlotProvider slotProvider )
     private Integer webPort;
     private String webContextRoot;
 
-    public long getMaxFileSize()
+    public Long getMaxFileSize()
     {
         return maxFileSize;
     }
 
-    public void setMaxFileSize( long maxFileSize )
+    public void setMaxFileSize( Long maxFileSize )
     {
         this.maxFileSize = maxFileSize;
     }
@@ -158,7 +158,7 @@ public void setWebPort( final int webPort )
         this.webPort = webPort;
     }
 
-    public int getWebPort()
+    public Integer getWebPort()
     {
         return webPort;
     }