diff --git a/src/Symfony/Component/Console/Helper/QuestionHelper.php b/src/Symfony/Component/Console/Helper/QuestionHelper.php
index 17605fe64c..dc68fe6e71 100644
--- a/src/Symfony/Component/Console/Helper/QuestionHelper.php
+++ b/src/Symfony/Component/Console/Helper/QuestionHelper.php
@@ -77,7 +77,7 @@ class QuestionHelper extends Helper
     }
 
     /**
-     * Returns the helper's input stream
+     * Returns the helper's input stream.
      *
      * @return resource
      */
@@ -146,7 +146,7 @@ class QuestionHelper extends Helper
      * Outputs the question prompt.
      *
      * @param OutputInterface $output
-     * @param Question $question
+     * @param Question        $question
      */
     protected function writePrompt(OutputInterface $output, Question $question)
     {
@@ -218,7 +218,7 @@ class QuestionHelper extends Helper
             // Backspace Character
             if ("\177" === $c) {
                 if (0 === $numMatches && 0 !== $i) {
-                    $i--;
+                    --$i;
                     // Move cursor backwards
                     $output->write("\033[1D");
                 }
@@ -271,7 +271,7 @@ class QuestionHelper extends Helper
             } else {
                 $output->write($c);
                 $ret .= $c;
-                $i++;
+                ++$i;
 
                 $numMatches = 0;
                 $ofs = 0;