diff --git a/QA/doalltests.mpi b/QA/doalltests.mpi
index faab9a1d68..b5d9152f25 100755
--- a/QA/doalltests.mpi
+++ b/QA/doalltests.mpi
@@ -16,7 +16,7 @@
 export NWCHEM_TOP=`pwd`/..
 export NWCHEM_TARGET=LINUX64
 export NWCHEM_TEST=${NWCHEM_TOP}/QA/tests
-export NWCHEM_EXECUTABLE=`find "${NWCHEM_TOP}/bin" -perm /u+x -name "nwchem*"`
+export NWCHEM_EXECUTABLE=`find "${NWCHEM_TOP}/bin" -perm -u-x -name "nwchem*"`
 nproc=4
 if [ "$1" != "" ] ; then
   nproc=$1