diff --git a/interface/wx/string.h b/interface/wx/string.h
index c4213100fe..59fe620c29 100644
--- a/interface/wx/string.h
+++ b/interface/wx/string.h
@@ -386,13 +386,13 @@ public:
     wxString(const char *psz, const wxMBConv& conv);
 
     /**
-       Constructs a string from the first @a nLength character of the string literal @a psz using
+       Constructs a string from the first @a nLength bytes of the string literal @a psz using
        the current locale encoding to convert it to Unicode (wxConvLibc).
     */
     wxString(const char *psz, size_t nLength);
 
     /**
-       Constructs a string from the first @a nLength character of the string literal @a psz using
+       Constructs a string from the first @a nLength bytes of the string literal @a psz using
        @a conv to convert it Unicode.
     */
     wxString(const char *psz, const wxMBConv& conv, size_t nLength);