"char" name used for a variable

[fbrauge]

dear,
I use codesys 3.5 SP19 with raspberry PI
There is a compilation warning
[WARNING] network, 1.3.5.2 (oscat): DNS_CLIENT(Line 26 (Decl)): C0543: The name 'CHAR' is a reserved keyword within the IEC61131-3 standard. An error will be reported in future versions.

As mentioned, in the future version of codesys, this  declaration will generate an error.

Could you correct the lib ?
thanks