diff --git a/test/shell/dmsecuretest.sh b/test/shell/dmsecuretest.sh
index 04c95f68f..7b7c2917c 100644
--- a/test/shell/dmsecuretest.sh
+++ b/test/shell/dmsecuretest.sh
@@ -38,6 +38,7 @@ for i in securetest dmsecuretest ; do
 # 2nd. retry with already exiting DM node - exercize error path also wipes
 for j in empty existing ; do
 
+rm -f cmdout
 "$i" "$dev1" "$DMTEST" >cmdout 2>&1 &
 PID=$!
 for k in $(seq 1 10); do