diff --git a/UPGRADING b/UPGRADING
index d598996f30d..6cfd47bfaf7 100755
--- a/UPGRADING
+++ b/UPGRADING
@@ -21,7 +21,7 @@ PHP X.Y UPGRADE NOTES
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 - Drop Windows XP and 2003 support. (Pierre)
-- All internal case insensitivity handling for class, fucntion and constant 
+- All internal case insensitivity handling for class, function and constant 
   names is done according to ASCII rules, current locale settings are ignored. 
 
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