diff --git a/src/CodeCoverage/Report/Node/File.php b/src/CodeCoverage/Report/Node/File.php
index b6ea7ecc5..8a7462d28 100644
--- a/src/CodeCoverage/Report/Node/File.php
+++ b/src/CodeCoverage/Report/Node/File.php
@@ -654,7 +654,7 @@ protected function processFunctions(PHP_Token_Stream $tokens)
     protected function crap($ccn, $coverage)
     {
         if ($coverage == 0) {
-            return (string) pow($ccn, 2) + $ccn;
+            return (string) (pow($ccn, 2) + $ccn);
         }
 
         if ($coverage >= 95) {