diff --git a/d2graph/d2graph.go b/d2graph/d2graph.go
index 7bc2ba1..750eb17 100644
--- a/d2graph/d2graph.go
+++ b/d2graph/d2graph.go
@@ -710,20 +710,16 @@ func (obj *Object) Connect(srcID, dstID []string, srcArrow, dstArrow bool, label
 				return nil, errors.New("cannot connect to reserved keyword")
 			}
 		}
 	}

 	src := srcObj.EnsureChild(srcID)
 	dst := dstObj.EnsureChild(dstID)

-	if src == dst {
-		return nil, errors.New("self-referencing connection")
-	}
-
 	edge := &Edge{
 		Attributes: Attributes{
 			Label: Scalar{
 				Value: label,
 			},
 		},
 		Src:      src,
 		SrcArrow: srcArrow,