diff --git a/source/de/anomic/http/httpc.java b/source/de/anomic/http/httpc.java
index 8b4907e72..2baffc348 100644
--- a/source/de/anomic/http/httpc.java
+++ b/source/de/anomic/http/httpc.java
@@ -767,6 +767,7 @@ public final class httpc {
         boundary = "--" + boundary.substring(pos + "boundary=".length());
 
         boolean zipContent = args.containsKey(GZIP_POST_BODY);
+        args.remove(GZIP_POST_BODY);
         
         OutputStream out;
         GZIPOutputStream zippedOut;