diff --git a/tools/qfcc/source/dot_dag.c b/tools/qfcc/source/dot_dag.c
index 9d6165a11..aa4c5a53f 100644
--- a/tools/qfcc/source/dot_dag.c
+++ b/tools/qfcc/source/dot_dag.c
@@ -119,9 +119,12 @@ print_node (dstring_t *dstr, dag_t *dag, dagnode_t *node)
 	}
 	for (edge_iter = set_first (edges); edge_iter;
 		 edge_iter = set_next (edge_iter)) {
-		dasprintf (dstr,
-				   "  \"dagnode_%p\" -> \"dagnode_%p\" [style=dashed];\n",
-				   node, dag->nodes[edge_iter->element]);
+		auto n = dag->nodes[edge_iter->element];
+		if (n->type != st_none) {
+			dasprintf (dstr,
+					   "  \"dagnode_%p\" -> \"dagnode_%p\" [style=dashed];\n",
+					   node, n);
+		}
 	}
 	set_delete (edges);
 	if (0) {