diff --git a/terraform/graph_dot.go b/terraform/graph_dot.go
index b2c064e63..b9313fa24 100644
--- a/terraform/graph_dot.go
+++ b/terraform/graph_dot.go
@@ -178,7 +178,7 @@ func graphDotFindOrigins(g *Graph) ([]dag.Vertex, error) {
 	}
 
 	if len(origin) == 0 {
-		return nil, fmt.Errorf("No DOT origin nodes found.\nGraph: %s", g)
+		return nil, fmt.Errorf("No DOT origin nodes found.\nGraph: %s", g.String())
 	}
 
 	return origin, nil