diff --git a/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py b/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
index eadff6017fc..cf5075ebfc8 100755
--- a/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
+++ b/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
@@ -151,7 +151,7 @@ def _getFromClient(self, fileId, token, fileSize, fileHelper=None, data=""):
             gLogger.info("Sandbox already exists. Skipping upload")
             if fileHelper:
                 fileHelper.markAsTransferred()
-            sbURL = f"SB:{self.__localSEName}|sbPath"
+            sbURL = f"SB:{self.__localSEName}|{sbPath}"
             assignTo = {key: [(sbURL, assignTo[key])] for key in assignTo}
             result = self.export_assignSandboxesToEntities(assignTo)
             if not result["OK"]: