diff --git a/libsrc/atari/ostype.s b/libsrc/atari/ostype.s
index 3528b7924..a8960b3ea 100644
--- a/libsrc/atari/ostype.s
+++ b/libsrc/atari/ostype.s
@@ -1,8 +1,8 @@
 ;
-; Christian Groessler, June 2004
+; Christian Groessler, July 2004
 ; from Freddy Offenga's rominfo.c
 ;
-; unsigned char _get_ostype(void)
+; unsigned char get_ostype(void)
 ;
 ; x x x x x x x x   -	8 bit flag
 ; | | | | | | | |
@@ -38,9 +38,9 @@
 ;		101 - unassigned (up to 111)
 ;
 
-	.export		__get_ostype
+	.export		_get_ostype
 
-.proc	__get_ostype
+.proc	_get_ostype
 
 	lda	$fcd8
 	cmp	#$a2
diff --git a/libsrc/atari/tvtype.s b/libsrc/atari/tvtype.s
index 47f4afd45..fc9d77e84 100644
--- a/libsrc/atari/tvtype.s
+++ b/libsrc/atari/tvtype.s
@@ -1,7 +1,7 @@
 ;
-; Christian Groessler, June 2004
+; Christian Groessler, July 2004
 ;
-; unsigned char _get_tv(void)
+; unsigned char get_tv(void)
 ;
 ; returns the TV system the machine is using
 ; 0 - NTSC
@@ -10,9 +10,9 @@
 
 
 	.include	"atari.inc"
-	.export		__get_tv
+	.export		_get_tv
 
-.proc	__get_tv
+.proc	_get_tv
 
 	lda	PAL		; use hw register, PALNTS is only supported on XL/XE ROM
 	ldx	#0