diff --git a/libs/codesniffer/PhOSCo/Sniffs/Commenting/FileCommentSniff.php b/libs/codesniffer/PhOSCo/Sniffs/Commenting/FileCommentSniff.php
index 56f3d824..5a668b6d 100644
--- a/libs/codesniffer/PhOSCo/Sniffs/Commenting/FileCommentSniff.php
+++ b/libs/codesniffer/PhOSCo/Sniffs/Commenting/FileCommentSniff.php
@@ -476,9 +476,9 @@ protected function processPackage($errorPos) {
         $newContent = preg_replace('/[^A-Za-z_]/', '', $newContent);
         $nameBits = explode('_', $newContent);
         $firstBit = array_shift($nameBits);
-        $newName = strtoupper($firstBit{0}) . substr($firstBit, 1) . '_';
+        $newName = strtoupper($firstBit[0]) . substr($firstBit, 1) . '_';
         foreach ($nameBits as $bit) {
-            $newName .= strtoupper($bit{0}) . substr($bit, 1) . '_';
+            $newName .= strtoupper($bit[0]) . substr($bit, 1) . '_';
         }
 
         $error = 'Package name "%s" is not valid; consider "%s" instead';
@@ -504,9 +504,9 @@ protected function processSubpackage($errorPos) {
                     $newContent = str_replace(' ', '_', $content);
                     $nameBits = explode('_', $newContent);
                     $firstBit = array_shift($nameBits);
-                    $newName = strtoupper($firstBit{0}) . substr($firstBit, 1) . '_';
+                    $newName = strtoupper($firstBit[0]) . substr($firstBit, 1) . '_';
                     foreach ($nameBits as $bit) {
-                        $newName .= strtoupper($bit{0}) . substr($bit, 1) . '_';
+                        $newName .= strtoupper($bit[0]) . substr($bit, 1) . '_';
                     }
 
                     $error = 'Subpackage name "%s" is not valid; consider "%s" instead';