diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 81c9d0c2c..b9bd67fc5 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -13395,6 +13395,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElementNS)
      */
+    createElementNS<K extends keyof HTMLElementTagNameMap>(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: K): HTMLElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement;
     createElementNS<K extends keyof SVGElementTagNameMap>(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: K): SVGElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: string): SVGElement;
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index 4316f4510..e34301255 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -13384,6 +13384,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElementNS)
      */
+    createElementNS<K extends keyof HTMLElementTagNameMap>(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: K): HTMLElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement;
     createElementNS<K extends keyof SVGElementTagNameMap>(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: K): SVGElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: string): SVGElement;
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index 932921bbd..a22d318bc 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -13392,6 +13392,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElementNS)
      */
+    createElementNS<K extends keyof HTMLElementTagNameMap>(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: K): HTMLElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement;
     createElementNS<K extends keyof SVGElementTagNameMap>(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: K): SVGElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: string): SVGElement;
diff --git a/baselines/ts5.9/dom.generated.d.ts b/baselines/ts5.9/dom.generated.d.ts
index 598a7a214..e63d5bfbb 100644
--- a/baselines/ts5.9/dom.generated.d.ts
+++ b/baselines/ts5.9/dom.generated.d.ts
@@ -13392,6 +13392,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElementNS)
      */
+    createElementNS<K extends keyof HTMLElementTagNameMap>(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: K): HTMLElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement;
     createElementNS<K extends keyof SVGElementTagNameMap>(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: K): SVGElementTagNameMap[K];
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: string): SVGElement;
diff --git a/inputfiles/addedTypes.jsonc b/inputfiles/addedTypes.jsonc
index 64861d798..2aaf5fb47 100644
--- a/inputfiles/addedTypes.jsonc
+++ b/inputfiles/addedTypes.jsonc
@@ -240,6 +240,7 @@
                         "createElementNS": {
                             "name": "createElementNS",
                             "additionalSignatures": [
+                                "createElementNS<K extends keyof HTMLElementTagNameMap>(namespaceURI: \"http://www.w3.org/1999/xhtml\", qualifiedName: K): HTMLElementTagNameMap[K]",
                                 "createElementNS(namespaceURI: \"http://www.w3.org/1999/xhtml\", qualifiedName: string): HTMLElement",
                                 "createElementNS<K extends keyof SVGElementTagNameMap>(namespaceURI: \"http://www.w3.org/2000/svg\", qualifiedName: K): SVGElementTagNameMap[K]",
                                 "createElementNS(namespaceURI: \"http://www.w3.org/2000/svg\", qualifiedName: string): SVGElement",
diff --git a/unittests/files/createelementns.ts b/unittests/files/createelementns.ts
new file mode 100644
index 000000000..befd6830a
--- /dev/null
+++ b/unittests/files/createelementns.ts
@@ -0,0 +1,7 @@
+const div: HTMLDivElement = document.createElementNS("http://www.w3.org/1999/xhtml", "div");
+const input: HTMLInputElement = document.createElementNS("http://www.w3.org/1999/xhtml", "input");
+const custom: HTMLElement = document.createElementNS("http://www.w3.org/1999/xhtml", "my-element");
+const circle: SVGCircleElement = document.createElementNS("http://www.w3.org/2000/svg", "circle");
+
+// @ts-expect-error an XHTML div is not an input element
+const wrong: HTMLInputElement = document.createElementNS("http://www.w3.org/1999/xhtml", "div");