diff --git a/extensions/qute/deployment/src/main/java/io/quarkus/qute/deployment/QuteProcessor.java b/extensions/qute/deployment/src/main/java/io/quarkus/qute/deployment/QuteProcessor.java
index 35707ebab16e3..00873e95b7fda 100644
--- a/extensions/qute/deployment/src/main/java/io/quarkus/qute/deployment/QuteProcessor.java
+++ b/extensions/qute/deployment/src/main/java/io/quarkus/qute/deployment/QuteProcessor.java
@@ -1320,7 +1320,7 @@ TemplateVariantsBuildItem collectTemplateVariants(List<TemplatePathBuildItem> te
         // ItemResource/item -> -> [ItemResource/item.html, ItemResource/item.xml]
         Map<String, List<String>> baseToVariants = new HashMap<>();
         for (String path : allPaths) {
-            int idx = path.lastIndexOf('.');
+            int idx = path.indexOf('.');
             if (idx != -1) {
                 String base = path.substring(0, idx);
                 List<String> variants = baseToVariants.get(base);
diff --git a/extensions/qute/deployment/src/main/resources/dev-templates/preview.html b/extensions/qute/deployment/src/main/resources/dev-templates/preview.html
index 47c59d988aa04..b563f52692486 100644
--- a/extensions/qute/deployment/src/main/resources/dev-templates/preview.html
+++ b/extensions/qute/deployment/src/main/resources/dev-templates/preview.html
@@ -15,11 +15,9 @@
         <label for="template-select">Template</label>
         <select class="form-control" name="template-select" id="template-select">
         {#for template in info:devQuteInfos.templates}
-          {#let optionIndex=index}
           {#each template.variants}
-          <option value="{it.key}"{#if optionIndex is 0 and index is 0} selected="true"{/if}>{it.key}</option>
+          <option value="{it.key}"{#if template_index is 0 and it_index is 0} selected="true"{/if}>{it.key}</option>
           {/each}
-          {/let}
         {/for}
         </select>
      </div>
@@ -56,26 +54,24 @@
   
   {! Init the template path -> initial data map !}
   {#for template in info:devQuteInfos.templates}
-     {#let dataCount=count}
-     var testData{dataCount};
+     var testData{template_count};
      {#if template.parameters}
-       testData{dataCount} = '{';
+       testData{template_count} = '{';
        {#each template.parameters}
-       testData{dataCount} += '\n  // Template parameter {template_count}: {it.value.raw}\n';
-       testData{dataCount} += '  "{it.key}" : null';
-       {#if hasNext}
-       testData{dataCount} += ',';
+       testData{template_count} += '\n  // Template parameter {it_count}: {it.value.raw}\n';
+       testData{template_count} += '  "{it.key}" : null';
+       {#if it_hasNext}
+       testData{template_count} += ',';
        {/if}
        {/each}
-       testData{dataCount} += '\n}'; 
+       testData{template_count} += '\n}'; 
      {#else}
-       testData{dataCount} = '{}';
+       testData{template_count} = '{}';
      {/if}
      {#each template.variants}
-     templateDataMap['{it.key}'] = testData{dataCount};
+     templateDataMap['{it.key}'] = testData{template_count};
      templateSourceMap['{it.key}'] = '{it.value}';
      {/each}
-     {/let}
   {/for}
 
   const editor = CodeMirror.fromTextArea(document.querySelector('#template-data'), {
diff --git a/integration-tests/devmode/src/test/java/io/quarkus/test/devconsole/DevConsoleQuteSmokeTest.java b/integration-tests/devmode/src/test/java/io/quarkus/test/devconsole/DevConsoleQuteSmokeTest.java
index 95c43e38d21b5..359e4a67a28e6 100644
--- a/integration-tests/devmode/src/test/java/io/quarkus/test/devconsole/DevConsoleQuteSmokeTest.java
+++ b/integration-tests/devmode/src/test/java/io/quarkus/test/devconsole/DevConsoleQuteSmokeTest.java
@@ -25,6 +25,9 @@ public void testTemplates() {
         RestAssured.get("q/dev/io.quarkus.quarkus-qute/templates")
                 .then()
                 .statusCode(200).body(Matchers.containsString("hello.txt"));
+        RestAssured.get("q/dev/io.quarkus.quarkus-qute/preview")
+                .then()
+                .statusCode(200).body(Matchers.containsString("Test JSON data"));
     }
 
 }