diff --git a/scripts/lib/update_acme_tests.py b/scripts/lib/update_acme_tests.py
index 6cb77a080b26..6de8f1688248 100644
--- a/scripts/lib/update_acme_tests.py
+++ b/scripts/lib/update_acme_tests.py
@@ -140,7 +140,7 @@
                            "PET.f19_g16.X",
                            "PET.f45_g37_rx1.A",
                            "PET_Ln9.ne30_oECv3_ICG.A_WCYCL1850S",
-                           "PEM_Ld3.ne30_oECv3_ICG.A_WCYCL1850S",
+                           "PEM_Ln9.ne30_oECv3_ICG.A_WCYCL1850S",
                            "ERP_Ld3.ne30_oECv3_ICG.A_WCYCL1850S",
                            "SEQ_IOP.f19_g16.X",
                            "SMS.ne30_oECv3_ICG.A_WCYCL1850S",