diff --git a/libsrc/common/tzset_time.s b/libsrc/common/tzset_time.s
deleted file mode 100644
index 5c0160404..000000000
--- a/libsrc/common/tzset_time.s
+++ /dev/null
@@ -1,16 +0,0 @@
-; tzset_time.s
-;
-; This file is part of
-; cc65 - a freeware C compiler for 6502 based systems
-;
-; https://cc65.github.io
-;
-; See "LICENSE" file for legal information.
-;
-; void __fastcall__ tzset_time (time_t* time);
-;
-
-        .export         _tzset_time
-
-_tzset_time:
-        rts
diff --git a/libsrc/rp6502/localtime_.c b/libsrc/rp6502/_localtime.c
similarity index 100%
rename from libsrc/rp6502/localtime_.c
rename to libsrc/rp6502/_localtime.c