diff --git a/lib/Twig/ExpressionParser.php b/lib/Twig/ExpressionParser.php
index 1eb5efba6..7b2d58f27 100644
--- a/lib/Twig/ExpressionParser.php
+++ b/lib/Twig/ExpressionParser.php
@@ -578,7 +578,7 @@ class Twig_ExpressionParser
 
         if ($function instanceof Twig_SimpleFunction && $function->isDeprecated()) {
             $message = sprintf('Twig Function "%s" is deprecated', $function->getName());
-            if (!is_bool($functon->getDeprecatedVersion())) {
+            if (!is_bool($function->getDeprecatedVersion())) {
                 $message .= sprintf(' since version %s', $function->getDeprecatedVersion());
             }
             if ($function->getAlternative()) {