diff --git a/Code/ApplicationEngine/otbWrapperParameterKey.h b/Code/ApplicationEngine/otbWrapperParameterKey.h
index 2df2d219568bc60659eb36c2cd75f5c991a94850..be04835b003daa597db8463cf62f37c97bce570b 100644
--- a/Code/ApplicationEngine/otbWrapperParameterKey.h
+++ b/Code/ApplicationEngine/otbWrapperParameterKey.h
@@ -89,7 +89,7 @@ last() : return "tata"
   /** Set Key value */
   void SetKey( const std::string & val )
     {
-      // Check chain : minuscule, alphanumerical or "."
+      // Check chain : lowercase, alphanumerical or "."
       itksys::RegularExpression reg;
       reg.compile("([^0-9a-z\\.])");