diff --git a/libsrc/c64/Makefile b/libsrc/c64/Makefile
index 5d8eeea5f..246f4773e 100644
--- a/libsrc/c64/Makefile
+++ b/libsrc/c64/Makefile
@@ -35,6 +35,7 @@ OBJS = 	_scrsize.o     	 	\
        	color.o	       	 	\
        	conio.o	       	 	\
        	cputc.o	       	 	\
+        get_ostype.o            \
         get_tv.o                \
 	joy_stddrv.o		\
        	kbhit.o	       	 	\
diff --git a/libsrc/c64/get_ostype.s b/libsrc/c64/get_ostype.s
new file mode 100644
index 000000000..b04c98576
--- /dev/null
+++ b/libsrc/c64/get_ostype.s
@@ -0,0 +1,22 @@
+;
+; Stefan Haubenthal, Jul 10 2003
+;
+; unsigned char get_ostype(void)
+;
+; $AA US
+; $64 PET-64
+; $43 SX-64
+; $03 EU_NEW
+; $00 EU_OLD
+;
+
+	.export		_get_ostype
+
+.proc	_get_ostype
+
+	lda	$ff80
+	rts
+
+.endproc
+
+