diff --git a/manipulation.go b/manipulation.go
index 07237a9..2c31770 100644
--- a/manipulation.go
+++ b/manipulation.go
@@ -41,9 +41,10 @@ func (s *Selection) AfterSelection(sel *Selection) *Selection {
 // This follows the same rules as Selection.Append.
 func (s *Selection) AfterHtml(htmlStr string) *Selection {
 	return s.eachNodeHtml(htmlStr, true, func(node *html.Node, nodes []*html.Node) {
+		nextSibling := node.NextSibling
 		for _, n := range nodes {
 			if node.Parent != nil {
-				node.Parent.InsertBefore(n, node.NextSibling)
+				node.Parent.InsertBefore(n, nextSibling)
 			}
 		}
 	})
diff --git a/manipulation_test.go b/manipulation_test.go
index 1d37054..74dda7c 100644
--- a/manipulation_test.go
+++ b/manipulation_test.go
@@ -70,8 +70,9 @@ func TestAfterHtmlContext(t *testing.T) {
 				</table>
 			</body>
 		</html>`)
-	doc.Find("table tr td").AfterHtml("<td>Test</td>")
-	assertLength(t, doc.Find("table tr td").Nodes, 4)
+	doc.Find("table tr td").AfterHtml("<td class='c1'>Test</td><td class='c2'>Again</td>")
+	assertLength(t, doc.Find("table tr td").Nodes, 6)
+	assertClass(t, doc.Find("table tr td").Last(), "c2")
 	printSel(t, doc.Selection)
 }
 
@@ -146,10 +147,10 @@ func TestAppendHtmlContext(t *testing.T) {
 				</table>
 			</body>
 		</html>`)
-	doc.Find("table tr").AppendHtml("<td class='new-node'>new node</td>")
+	doc.Find("table tr").AppendHtml("<td class='c1'>new1</td><td class='c2'>new2</td>")
 
-	assertLength(t, doc.Find("table td").Nodes, 4)
-	assertClass(t, doc.Find("table td").Last(), "new-node")
+	assertLength(t, doc.Find("table td").Nodes, 6)
+	assertClass(t, doc.Find("table td").Last(), "c2")
 	printSel(t, doc.Selection)
 }
 
@@ -205,10 +206,10 @@ func TestBeforeHtmlContext(t *testing.T) {
 				</table>
 			</body>
 		</html>`)
-	doc.Find("table tr td:first-child").BeforeHtml("<td class='new-node'>new node</td>")
+	doc.Find("table tr td:first-child").BeforeHtml("<td class='c1'>new1</td><td class='c2'>new2</td>")
 
-	assertLength(t, doc.Find("table td").Nodes, 4)
-	assertClass(t, doc.Find("table td").First(), "new-node")
+	assertLength(t, doc.Find("table td").Nodes, 6)
+	assertClass(t, doc.Find("table td").First(), "c1")
 	printSel(t, doc.Selection)
 }
 
@@ -374,10 +375,11 @@ func TestReplaceWithHtmlContext(t *testing.T) {
 				</table>
 			</body>
 		</html>`)
-	doc.Find("table th").ReplaceWithHtml("<td>Test</td><td>Replace</td>")
+	doc.Find("table th").ReplaceWithHtml("<td class='c1'>Test</td><td class='c2'>Replace</td>")
 
 	assertLength(t, doc.Find("table th").Nodes, 0)
 	assertLength(t, doc.Find("table tr td").Nodes, 4)
+	assertClass(t, doc.Find("table tr td").First(), "c1")
 	printSel(t, doc.Selection)
 }