diff --git a/openbis_standard_technologies/clients.gradle b/openbis_standard_technologies/clients.gradle
index 08b2103ffb464513b3974dc75c2f457957e718a2..1f4c0310416e3770c16eb74d2720a8238d9f4ffe 100644
--- a/openbis_standard_technologies/clients.gradle
+++ b/openbis_standard_technologies/clients.gradle
@@ -210,6 +210,7 @@ dssUploadGuiStandalone.dependsOn signWebStartJars
 
 
 task dssUploadGuiStandaloneJar(type: Jar, dependsOn: dssUploadGuiStandalone) {
+    duplicatesStrategy 'include'
     baseName 'dss_upload_gui_standalone'
     from ({ fileTree("${signedJarsFolder}").matching {
             include "aopalliance.jar"