diff --git a/echosvg-anim/src/main/java/io/sf/carte/echosvg/anim/dom/SAXSVGDocumentFactory.java b/echosvg-anim/src/main/java/io/sf/carte/echosvg/anim/dom/SAXSVGDocumentFactory.java
index 2dc32a6a0..981db3fe4 100644
--- a/echosvg-anim/src/main/java/io/sf/carte/echosvg/anim/dom/SAXSVGDocumentFactory.java
+++ b/echosvg-anim/src/main/java/io/sf/carte/echosvg/anim/dom/SAXSVGDocumentFactory.java
@@ -348,12 +348,11 @@ public SVGDocument createDocument(String ns, String root, String uri, Reader r)
 
 	@Override
 	public DOMImplementation getDOMImplementation(String ver) {
-		if (ver == null || ver.length() == 0 || ver.equals("1.0") || ver.equals("1.1")) {
+		if (!"1.2".equals(ver)) {
 			return SVGDOMImplementation.getDOMImplementation();
-		} else if (ver.equals("1.2")) {
+		} else {
 			return SVG12DOMImplementation.getDOMImplementation();
 		}
-		throw new RuntimeException("Unsupport SVG version '" + ver + "'");
 	}
 
 	/**
diff --git a/echosvg-bridge/src/main/java/io/sf/carte/echosvg/bridge/BridgeContext.java b/echosvg-bridge/src/main/java/io/sf/carte/echosvg/bridge/BridgeContext.java
index f7d5d14fb..7dd360ff7 100644
--- a/echosvg-bridge/src/main/java/io/sf/carte/echosvg/bridge/BridgeContext.java
+++ b/echosvg-bridge/src/main/java/io/sf/carte/echosvg/bridge/BridgeContext.java
@@ -1979,7 +1979,7 @@ public List<BridgeExtension> getBridgeExtensions(Document doc) {
 		Element root = ((SVGOMDocument) doc).getRootElement();
 		String ver = root.getAttributeNS(null, SVGConstants.SVG_VERSION_ATTRIBUTE);
 		BridgeExtension svgBE;
-		if ((ver.length() == 0) || ver.equals("1.0") || ver.equals("1.1"))
+		if (!"1.2".equals(ver))
 			svgBE = new SVGBridgeExtension();
 		else
 			svgBE = new SVG12BridgeExtension();