diff --git a/src/tests/modules/exec/attrs.sh b/src/tests/modules/exec/attrs.sh
index 727c972671212..b401387b09090 100755
--- a/src/tests/modules/exec/attrs.sh
+++ b/src/tests/modules/exec/attrs.sh
@@ -2,5 +2,6 @@
 
 echo Filter-Id := $1
 echo Callback-Id := \"${CALLED_STATION_ID}\"
+echo reply.Filter-Id := $1
 
 exit 0;
diff --git a/src/tests/modules/exec/sync.unlang b/src/tests/modules/exec/sync.unlang
index f00219d19e6ac..f91b46cf58b40 100644
--- a/src/tests/modules/exec/sync.unlang
+++ b/src/tests/modules/exec/sync.unlang
@@ -59,6 +59,10 @@ if ((!&control.Callback-Id) || (&control.Callback-Id != 'aabbccddeeff')) {
 	test_fail
 }
 
+if ((!&reply.Filter-Id) || (&reply.Filter-Id != 'tony')) {
+	test_fail
+}
+
 #
 #  Call a module which returns status code 7 - mapped to module exit
 #  code "notfound".  Attributes in its output should be ignored.
@@ -85,4 +89,5 @@ if !(&control.Filter-Id == 'TONY') {
 	test_fail
 }
 
+&reply -= &Filter-Id[*]
 test_pass