diff --git a/Classes/AFXMLDictionaryResponseSerializer.m b/Classes/AFXMLDictionaryResponseSerializer.m
index 4ca9275..fa26e81 100644
--- a/Classes/AFXMLDictionaryResponseSerializer.m
+++ b/Classes/AFXMLDictionaryResponseSerializer.m
@@ -21,7 +21,7 @@ - (instancetype)init {
         return nil;
     }
     
-    self.acceptableContentTypes = [NSSet setWithObjects:@"application/xml", @"text/xml", nil];
+    self.acceptableContentTypes = [NSSet setWithObjects:@"application/xml", @"text/xml", @"application/rss+xml", nil];
     
     return self;
 }