diff --git a/test/rock.sh b/test/rock.sh
index e7a4b8db595213cd0f60e451b4ee4a7ee554164c..1572769785ba5acac65086823f946d10af3a36ec 100755
--- a/test/rock.sh
+++ b/test/rock.sh
@@ -74,7 +74,7 @@ echo "doing more checks on options and error messages"
 #../src/rock -C 500 -c 400 -k 10 -q 2 -m 2 -i ${srcdir}/test/data/iofiles.args/extract_klebsiella_long_reads_100.txt|grep "Incompatible options">/dev/null || exit 161
 
 # here check that we have enough memory for running the tests.
-../src/unit_test_cms CHECK_MEM
+../src/unit_test_cms
 if [ $? = 0 ] ## we have enough memory to run the tests in rock_mem.sh
 then 
      ${srcdir}/rock_mem.sh ||exit 255