diff --git a/src/frontend/vectors.c b/src/frontend/vectors.c
index 1e2101e08..64f35d330 100644
--- a/src/frontend/vectors.c
+++ b/src/frontend/vectors.c
@@ -720,6 +720,7 @@ vec_copy(struct dvec *v)
     nv->v_next = NULL;
     nv->v_link2 = NULL;
     nv->v_scale = v->v_scale;
+	nv->v_unclipped = v->v_unclipped;
 
     return (nv);
 }
diff --git a/src/include/ngspice/dvec.h b/src/include/ngspice/dvec.h
index 7c040c7f4..9b6d471e6 100644
--- a/src/include/ngspice/dvec.h
+++ b/src/include/ngspice/dvec.h
@@ -58,6 +58,7 @@ struct dvec {
     struct dvec *v_next;	/* Link for list of plot vectors. */
     struct dvec *v_link2;	/* Extra link for things like print. */
     struct dvec *v_scale;	/* If this has a non-standard scale... */
+    struct dvec *v_unclipped;	/* If clipped, this is the original vector */
 } ;
 
 #define isreal(v)   ((v)->v_flags & VF_REAL)