diff --git a/packages/fcl-web/src/base/httpdefs.pp b/packages/fcl-web/src/base/httpdefs.pp
index f77ca5e492..a422cd9fa2 100644
--- a/packages/fcl-web/src/base/httpdefs.pp
+++ b/packages/fcl-web/src/base/httpdefs.pp
@@ -2573,10 +2573,9 @@ procedure TRequest.HandleStreamingUnknownEncoding(const State: TContentStreaming
 var
   S: TStream;
 begin
+  ProcessStreamingSetContent(State, Buf, Size);
   if Assigned(FOnUnknownEncoding) then
     begin
-    ProcessStreamingSetContent(State, Buf, Size);
-
     if state=cssEnd then
       begin
       try