diff --git a/.travis.yml b/.travis.yml
index 14ef706..d88c6f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,6 +22,7 @@ matrix:
       dist: trusty
   allow_failures:
     - php: hhvm
+    - php: 7.4snapshot
 
 script:
   - '[[ "$TRAVIS_PHP_VERSION" = 5.2* ]] && phpunit || vendor/bin/phpunit --verbose'
diff --git a/src/Mustache/Parser.php b/src/Mustache/Parser.php
index c36a84a..0ec4192 100644
--- a/src/Mustache/Parser.php
+++ b/src/Mustache/Parser.php
@@ -149,7 +149,7 @@ class Mustache_Parser
                 case Mustache_Tokenizer::T_BLOCK_VAR:
                     if ($this->pragmaBlocks) {
                         // BLOCKS pragma is enabled, let's do this!
-                        if ($parent[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_PARENT) {
+                        if (isset($parent) && $parent[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_PARENT) {
                             $token[Mustache_Tokenizer::TYPE] = Mustache_Tokenizer::T_BLOCK_ARG;
                         }
                         $this->clearStandaloneLines($nodes, $tokens);
@@ -275,7 +275,7 @@ class Mustache_Parser
      */
     private function checkIfTokenIsAllowedInParent($parent, array $token)
     {
-        if ($parent[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_PARENT) {
+        if (isset($parent) && $parent[Mustache_Tokenizer::TYPE] === Mustache_Tokenizer::T_PARENT) {
             throw new Mustache_Exception_SyntaxException('Illegal content in < parent tag', $token);
         }
     }