diff --git a/CIME/SystemTests/pgn.py b/CIME/SystemTests/pgn.py
index afbdd236e8e..ac68773aeb4 100644
--- a/CIME/SystemTests/pgn.py
+++ b/CIME/SystemTests/pgn.py
@@ -45,7 +45,9 @@
     ]
 )
 FCLD_NC = "cam.h0.cloud.nc"
-INIT_COND_FILE_TEMPLATE = "20231105.v3b01.F2010.ne4_oQU240.chrysalis.{}.{}.0002-{:02d}-01-00000.nc"
+INIT_COND_FILE_TEMPLATE = (
+    "20231105.v3b01.F2010.ne4_oQU240.chrysalis.{}.{}.0002-{:02d}-01-00000.nc"
+)
 INSTANCE_FILE_TEMPLATE = "{}{}_{:04d}.h0.0001-01-01-00000{}.nc"
 
 
diff --git a/CIME/SystemTests/tsc.py b/CIME/SystemTests/tsc.py
index 3a122af893d..1a37ecaac5d 100644
--- a/CIME/SystemTests/tsc.py
+++ b/CIME/SystemTests/tsc.py
@@ -32,7 +32,9 @@
 SIM_LENGTH = 600  # seconds
 OUT_FREQ = 10  # seconds
 INSPECT_AT = [300, 450, 600]  # seconds
-INIT_COND_FILE_TEMPLATE = "20231105.v3b01.F2010.ne4_oQU240.chrysalis.{}.{}.0002-{:02d}-01-00000.nc"
+INIT_COND_FILE_TEMPLATE = (
+    "20231105.v3b01.F2010.ne4_oQU240.chrysalis.{}.{}.0002-{:02d}-01-00000.nc"
+)
 VAR_LIST = [
     "T",
     "Q",