diff --git a/src/osmo_gsm_tester/templates/amarisoft_enb.cfg.tmpl b/src/osmo_gsm_tester/templates/amarisoft_enb.cfg.tmpl
index 2893b9e..f46b77e 100644
--- a/src/osmo_gsm_tester/templates/amarisoft_enb.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/amarisoft_enb.cfg.tmpl
@@ -73,7 +73,7 @@
     rf_port: ${cell.rf_port},
     cell_id: ${cell.cell_id},
     n_id_cell: ${cell.pci},
-    tac: 0x0001,
+    tac: 0x0007,
     root_sequence_index: ${loop.index + 204}, /* PRACH root sequence index */
 
     ncell_list: [