diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLCanvasElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLCanvasElement.java
index d859aabf5..237874049 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLCanvasElement.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLCanvasElement.java
@@ -16,6 +16,7 @@
 package org.teavm.dom.html;
 
 import org.teavm.dom.canvas.CanvasImageSource;
+import org.teavm.jso.JSMethod;
 import org.teavm.jso.JSObject;
 import org.teavm.jso.JSProperty;
 
@@ -39,4 +40,7 @@ public interface HTMLCanvasElement extends HTMLElement, CanvasImageSource {
     JSObject getContext(String contextId);
 
     JSObject getContext(String contextId, JSObject attributes);
+
+    @JSMethod
+    String toDataURL(String type);
 }
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java
index c02699870..00dc6008c 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java
@@ -102,4 +102,10 @@ public interface HTMLElement extends Element, ElementCSSInlineStyle, EventTarget
     @JSProperty
     @Override
     HTMLDocument getOwnerDocument();
+
+    @JSProperty
+    int getInnerHTML();
+
+    @JSProperty
+    void setInnerHTML(String content);
 }