diff --git a/g10/ChangeLog b/g10/ChangeLog
index 6cb69747d..9b0645bb0 100644
--- a/g10/ChangeLog
+++ b/g10/ChangeLog
@@ -1,3 +1,7 @@
+2004-01-13  Werner Koch  <wk@gnupg.org>
+
+	* hkp.c (hkp_export): Send a content-type line.
+
 2004-01-09  David Shaw  <dshaw@localhost.localdomain>
 
 	* packet.h, getkey.c (merge_selfsigs, merge_selfsigs_main),
diff --git a/g10/hkp.c b/g10/hkp.c
index 287638371..d62becff2 100644
--- a/g10/hkp.c
+++ b/g10/hkp.c
@@ -161,6 +161,10 @@ hkp_export( STRLIST users )
 	return rc;
     }
 
+    /* Some keyservers require this Content-Type (e.g. CryptoEx). */
+    iobuf_writestr(hd.fp_write,
+                   "Content-Type: application/x-www-form-urlencoded\r\n");
+
     sprintf( request, "Content-Length: %u\r\n",
 		      (unsigned)iobuf_get_temp_length(temp) + 9 );
     iobuf_writestr( hd.fp_write, request );