diff --git a/java/target/compareServers b/java/target/compareServers
index 987951a7b0d..da88f1ab24d 100755
--- a/java/target/compareServers
+++ b/java/target/compareServers
@@ -51,7 +51,7 @@ if [ "${useRestApi}" = "1" ]; then
     AUTH=""
   fi
   HEADERS=$( mktemp )
-  CURL_OUTPUT=$( curl -sL --dump-header "${HEADERS}" "${NEWSERVER}/sailingserver/api/v1/compareservers" -d "server2=${OLDSERVER}" ${AUTH} 2>${WGET_ERR} )
+  CURL_OUTPUT=$( curl -sL --dump-header "${HEADERS}" -H 'Content-Type: multipart/form-data' "${NEWSERVER}/sailingserver/api/v1/compareservers" -d "server2=${OLDSERVER}" ${AUTH} 2>${WGET_ERR} )
   echo "${CURL_OUTPUT}" | jq
   HTTP_STATUS=$( cat "${HEADERS}" | grep "^HTTP\/[0-9.]* [0-9]\{3\}" | tail -1 | sed -e 's/^HTTP\/[0-9.]* \([0-9]\{3\}\).*$/\1/' )
   rm -f "${HEADERS}"