diff --git a/dse/clib/data/marshal.c b/dse/clib/data/marshal.c
index 5e2c4df..4efd05d 100644
--- a/dse/clib/data/marshal.c
+++ b/dse/clib/data/marshal.c
@@ -178,6 +178,7 @@ void marshal_group_in(MarshalGroup* mg_table)
         case MARSHAL_DIRECTION_TXRX:
         case MARSHAL_DIRECTION_RXONLY:
         case MARSHAL_DIRECTION_PARAMETER:
+        case MARSHAL_DIRECTION_LOCAL:
             if (mg->kind == MARSHAL_KIND_PRIMITIVE) _marshal_scalar_in(mg);
             break;
         default:
diff --git a/dse/clib/data/marshal.h b/dse/clib/data/marshal.h
index 5ed1bdc..da77a01 100644
--- a/dse/clib/data/marshal.h
+++ b/dse/clib/data/marshal.h
@@ -72,6 +72,8 @@ typedef enum MarshalKind {
 
 typedef enum MarshalDir {
     MARSHAL_DIRECTION_NONE = 0,
+
+    /* TX and RX: from target. */
     MARSHAL_DIRECTION_TXRX,
     /* RX: from target (i.e. source <-rx- target). */
     MARSHAL_DIRECTION_RXONLY,
@@ -79,6 +81,9 @@ typedef enum MarshalDir {
     MARSHAL_DIRECTION_TXONLY,
     /* Set (RX): only at specific points in lifecycle. */
     MARSHAL_DIRECTION_PARAMETER,
+    /* RX: from target (caller will not expose to signal interface). */
+    MARSHAL_DIRECTION_LOCAL,
+
     __MARSHAL_DIRECTION_SIZE__,
 } MarshalDir;
 
diff --git a/tests/data/test_marshal.c b/tests/data/test_marshal.c
index e61631c..2707b37 100644
--- a/tests/data/test_marshal.c
+++ b/tests/data/test_marshal.c
@@ -202,6 +202,7 @@ void test_marshal_group__primitive(void** state)
                 case MARSHAL_DIRECTION_TXRX:
                 case MARSHAL_DIRECTION_RXONLY:
                 case MARSHAL_DIRECTION_PARAMETER:
+                case MARSHAL_DIRECTION_LOCAL:
                     switch (mg->type) {
                     case MARSHAL_TYPE_INT32:
                     case MARSHAL_TYPE_BOOL: