diff --git a/Model/BlockProcessor.php b/Model/BlockProcessor.php
index edf919e..5300b77 100644
--- a/Model/BlockProcessor.php
+++ b/Model/BlockProcessor.php
@@ -56,7 +56,7 @@ public function __construct(
      */
     public function wrapBlock($html, $blockId, $name)
     {
-        if ($html) {
+        if (trim($html)) {
             $html = '<!-- START_MSPDEV[' . $blockId . ']: ' . $name . ' -->' . $html
             . '<!-- END_MSPDEV[' . $blockId . ']: ' . $name . ' -->';
  
diff --git a/etc/module.xml b/etc/module.xml
index 2e8f9f0..d923a59 100644
--- a/etc/module.xml
+++ b/etc/module.xml
@@ -21,7 +21,7 @@
  -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
-    <module name="MSP_DevTools" setup_version="1.2.6">
+    <module name="MSP_DevTools" setup_version="1.2.7">
         <sequence>
             <module name="MSP_Common"/>