diff --git a/README.md b/README.md
index dbdec83..f76e72c 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ Code example
         # important: do not sleep here!
 
 
-In the change_<xxx> function the validity of <value> has to be checked, and if any conversion
+In the change_xxx function the validity of <value> has to be checked, and if any conversion
 happens the converted value has to be returned. When no change function is present, the value
 is converted to the type of the initial value (e.g. float, int or str)