diff --git a/src/diff/index.js b/src/diff/index.js
index 3a78f31b30..d97abea6fa 100644
--- a/src/diff/index.js
+++ b/src/diff/index.js
@@ -403,15 +403,15 @@ function diffElementNodes(
 			return document.createTextNode(newProps);
 		}
 
-		if (namespace == 2) {
-			dom = document.createElementNS('http://www.w3.org/2000/svg', nodeType);
-		} else if (namespace == 3) {
+		if (namespace == 1) {
+			dom = document.createElement(nodeType, newProps.is && newProps);
+		} else {
 			dom = document.createElementNS(
-				'http://www.w3.org/1998/Math/MathML',
+				namespace == 2
+					? 'http://www.w3.org/2000/svg'
+					: 'http://www.w3.org/1998/Math/MathML',
 				nodeType
 			);
-		} else {
-			dom = document.createElement(nodeType, newProps.is && newProps);
 		}
 
 		// we created a new parent, so none of the previously attached children can be reused: