diff --git a/lib/isc/win32/include/isc/platform.h.in b/lib/isc/win32/include/isc/platform.h.in
index b927888f1cda35109a84673f9dbc02ee89470193..6369fc5630478bf5825ccf48478685f6b9ec085b 100644
--- a/lib/isc/win32/include/isc/platform.h.in
+++ b/lib/isc/win32/include/isc/platform.h.in
@@ -36,7 +36,9 @@
 #endif
 
 #include <stdint.h>
+#if _MSC_VER < 1914
 typedef uint32_t socklen_t;
+#endif
 
 #endif
 
diff --git a/lib/isc/win32/libisc.def.in b/lib/isc/win32/libisc.def.in
index 049f5066caaa90eb38eebde08983da60722d373f..73721366ae5f7349c9ed66c438e2c97fe7150481 100644
--- a/lib/isc/win32/libisc.def.in
+++ b/lib/isc/win32/libisc.def.in
@@ -613,8 +613,6 @@ isc_stdio_tell
 isc_stdio_write
 isc_stdtime_get
 isc_string_strerror_r
-isc_string_strlcat
-isc_string_strlcpy
 isc_symtab_count
 isc_symtab_create
 isc_symtab_define