diff --git a/CIME/case/case_setup.py b/CIME/case/case_setup.py
index d541ff6a5ea..56cf275ab26 100644
--- a/CIME/case/case_setup.py
+++ b/CIME/case/case_setup.py
@@ -28,6 +28,7 @@
 
 logger = logging.getLogger(__name__)
 
+
 ###############################################################################
 def _build_usernl_files(case, model, comp):
     ###############################################################################
@@ -406,10 +407,11 @@ def _case_setup_impl(
                 )
             if comp == "cam":
                 camroot = case.get_value("COMP_ROOT_DIR_ATM")
-                camoptions = case.get_value("CAM_CONFIG_OPTS")
                 logger.debug("Running cam.case_setup.py")
                 run_cmd_no_fail(
-                    "python {cam}/cime_config/cam.case_setup.py {cam} {case}".format(cam=camroot, case=caseroot)
+                    "python {cam}/cime_config/cam.case_setup.py {cam} {case}".format(
+                        cam=camroot, case=caseroot
+                    )
                 )
 
         _build_usernl_files(case, "drv", "cpl")