diff --git a/src/aiidalab_qe/app/submission/model.py b/src/aiidalab_qe/app/submission/model.py
index f4d49deb5..45142735d 100644
--- a/src/aiidalab_qe/app/submission/model.py
+++ b/src/aiidalab_qe/app/submission/model.py
@@ -103,7 +103,7 @@ def update_process_label(self):
             "SYSTEM"
         ].get("lspinorb", False)
 
-        soc_info = ", spin-orbit coupling" if soc_parameters else ""
+        soc_info = "spin-orbit coupling" if soc_parameters else ""
 
         properties = [p for p in workchain_data["properties"] if p != "relax"]
         relax_type = workchain_data.get("relax_type", "none")