diff --git a/libsrc/cbm510/Makefile b/libsrc/cbm510/Makefile
index 74d560ebd..cd25dbc75 100644
--- a/libsrc/cbm510/Makefile
+++ b/libsrc/cbm510/Makefile
@@ -64,6 +64,7 @@ OBJS =	_scrsize.o	\
 	kopen.o		\
         kreadst.o       \
 	kscnkey.o	\
+	kscreen.o	\
         ksetnam.o       \
 	kudtim.o 	\
         mainargs.o      \
diff --git a/libsrc/cbm510/kscreen.s b/libsrc/cbm510/kscreen.s
new file mode 100644
index 000000000..87b91c1aa
--- /dev/null
+++ b/libsrc/cbm510/kscreen.s
@@ -0,0 +1,16 @@
+;
+; Ullrich von Bassewitz, 2003-12-19
+;
+; SCREEN kernal call
+;
+
+        .export         SCREEN
+
+
+.proc   SCREEN
+
+       	ldx    	#40		; Columns
+	ldy	#25		; Lines
+	rts
+
+.endproc