diff --git a/test/Test_AddAtom/RunTest.sh b/test/Test_AddAtom/RunTest.sh
new file mode 100755
index 0000000000..6443bfbfb2
--- /dev/null
+++ b/test/Test_AddAtom/RunTest.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+. ../MasterTest.sh
+
+CleanFiles addatom.in tz2.addatom.pdb tz2.mask.dat
+
+TESTNAME='Add atom tests'
+
+INPUT='-i addatom.in'
+
+Requires maxthreads 1
+
+cat > addatom.in <<EOF
+parm ../tz2.pdb
+trajin ../tz2.pdb 1 1
+addatom aname TEMP rname TMP elt H xyz 1 1 1
+mask :TMP<@3.0&!:TMP out tz2.mask.dat name TZ2
+trajout tz2.addatom.pdb
+run
+EOF
+RunCpptraj "Add atom test"
+DoTest tz2.addatom.pdb.save tz2.addatom.pdb
+DoTest tz2.mask.dat.save tz2.mask.dat
+
+EndTest