diff --git a/src/org/zkoss/zkidea/dom/ZulDomUtil.java b/src/org/zkoss/zkidea/dom/ZulDomUtil.java
index e01c3fe..34a1700 100644
--- a/src/org/zkoss/zkidea/dom/ZulDomUtil.java
+++ b/src/org/zkoss/zkidea/dom/ZulDomUtil.java
@@ -33,7 +33,7 @@ public static boolean isZKFile(PsiFile file) {
 	}
 
 	public static boolean isZKFile(String ext) {
-		return ZulFileType.EXTENSION.equalsIgnoreCase(ext);
+		return ZulFileType.EXTENSION.equalsIgnoreCase(ext) || "zhtml".equalsIgnoreCase(ext);
 	}
 	public static boolean hasViewModel(PsiElement element) {
 		do {
diff --git a/src/org/zkoss/zkidea/editorActions/WebBrowserUrlProvider.java b/src/org/zkoss/zkidea/editorActions/WebBrowserUrlProvider.java
index 6fa87f8..cfa95e4 100644
--- a/src/org/zkoss/zkidea/editorActions/WebBrowserUrlProvider.java
+++ b/src/org/zkoss/zkidea/editorActions/WebBrowserUrlProvider.java
@@ -14,7 +14,6 @@
 import com.intellij.execution.ExecutionManager;
 import com.intellij.execution.process.ProcessHandler;
 import com.intellij.ide.browsers.OpenInBrowserRequest;
-import com.intellij.ide.highlighter.XmlFileType;
 import com.intellij.openapi.fileTypes.FileType;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vfs.VirtualFile;
@@ -45,7 +44,7 @@ protected Url getUrl(@NotNull OpenInBrowserRequest request, @NotNull VirtualFile
 			String port = "8080";
 
 			FileType fileType = file.getFileType();
-			if (file.getFileType() instanceof XmlFileType && ZulDomUtil.isZKFile(file.getExtension())) {
+			if (ZulDomUtil.isZKFile(file.getExtension())) {
 				ProcessHandler[] runningProcesses = ExecutionManager
 						.getInstance(request.getProject())
 						.getRunningProcesses();