diff --git a/utils/NightlyTest.pl b/utils/NightlyTest.pl
index 3592f1d..270753c 100755
--- a/utils/NightlyTest.pl
+++ b/utils/NightlyTest.pl
@@ -23,6 +23,7 @@
 #  -enable-llcbeta  Enable testing of beta features in llc.
 #  -disable-llc     Disable LLC tests in the nightly tester.
 #  -disable-jit     Disable JIT tests in the nightly tester.
+#  -disable-cbe     Disable C backend tests in the nightly tester.
 #  -verbose         Turn on some debug output
 #  -debug           Print information useful only to maintainers of this script.
 #  -nice            Checkout/Configure/Build with "nice" to reduce impact 
@@ -303,6 +304,7 @@
                              $CONFIGUREARGS .= " --disable-llc_diffs"; next; }
   if (/^-disable-jit$/)    { $PROGTESTOPTS .= " DISABLE_JIT=1";
                              $CONFIGUREARGS .= " --disable-jit"; next; }
+  if (/^-disable-cbe$/)    { $PROGTESTOPTS .= " DISABLE_CBE=1"; next; }
   if (/^-verbose$/)        { $VERBOSE = 1; next; }
   if (/^-debug$/)          { $DEBUG = 1; next; }
   if (/^-nice$/)           { $NICE = "nice "; next; }