diff --git a/autoTest.pl b/autoTest.pl
index 674ce56..9a4cd21 100755
--- a/autoTest.pl
+++ b/autoTest.pl
@@ -164,7 +164,7 @@ $data{'cbl'}{'src'} = "primes.cbl";
 $data{'cbl'}{'prog'} = "primescbl"; 
 $data{'cbl'}{'compiler'} = 2;
 $data{'cbl'}{'compiler0'} = "cobc";
-$data{'cbl'}{'cflags0'} = "-o $data{'cbl'}{'prog'} -O";
+$data{'cbl'}{'cflags0'} = "-o $data{'cbl'}{'prog'} -x";
 $data{'cbl'}{'compiler1'} = "htcobolpp";
 $data{'cbl'}{'cflags1'} = "-o $data{'cbl'}{'prog'} -x ";
 $data{'cbl'}{'pre'} = "echo \"$max\" | ";