diff --git a/moodle/Sniffs/Files/BoilerplateCommentSniff.php b/moodle/Sniffs/Files/BoilerplateCommentSniff.php
index fd27a37..8883171 100644
--- a/moodle/Sniffs/Files/BoilerplateCommentSniff.php
+++ b/moodle/Sniffs/Files/BoilerplateCommentSniff.php
@@ -75,7 +75,7 @@ public function process(File $file, $stackptr) {
         // Note that the opening PHP tag includes one newline.
         $numnewlines = 0;
         for ($i = $stackptr + 1; $i <= $stackptr + 5; ++$i) {
-            if ($tokens[$i]['code'] == T_WHITESPACE && $tokens[$i]['content'] == "\n") {
+            if (isset($tokens[$i]) && $tokens[$i]['code'] == T_WHITESPACE && $tokens[$i]['content'] == "\n") {
                 $numnewlines++;
             } else {
                 break;
diff --git a/moodle/Tests/FilesBoilerPlateCommentTest.php b/moodle/Tests/FilesBoilerPlateCommentTest.php
index 1c4c981..d6e77f5 100644
--- a/moodle/Tests/FilesBoilerPlateCommentTest.php
+++ b/moodle/Tests/FilesBoilerPlateCommentTest.php
@@ -92,6 +92,19 @@ public function test_moodle_files_boilerplatecomment_short() {
         $this->verify_cs_results();
     }
 
+    public function test_moodle_files_boilerplatecomment_short_empty() {
+            $this->set_standard('moodle');
+            $this->set_sniff('moodle.Files.BoilerplateComment');
+            $this->set_fixture(__DIR__ . '/fixtures/files/boilerplatecomment/short_empty.php');
+
+            $this->set_errors([
+                1 => 'FileTooShort',
+            ]);
+            $this->set_warnings([]);
+
+            $this->verify_cs_results();
+        }
+
     public function test_moodle_files_boilerplatecomment_wrongline() {
         $this->set_standard('moodle');
         $this->set_sniff('moodle.Files.BoilerplateComment');
diff --git a/moodle/Tests/fixtures/files/boilerplatecomment/short_empty.php b/moodle/Tests/fixtures/files/boilerplatecomment/short_empty.php
new file mode 100644
index 0000000..b3d9bbc
--- /dev/null
+++ b/moodle/Tests/fixtures/files/boilerplatecomment/short_empty.php
@@ -0,0 +1 @@
+<?php