diff --git a/make/bt b/make/bt
index 1890cb8..ca521ba 100755
--- a/make/bt
+++ b/make/bt
@@ -22,4 +22,13 @@ then
     exit 1
 fi
 
-exec "$JAVA" -jar make/bastokenizer-tools-bt-0.2.0.jar $*
+INPUTFILE=$1
+shift
+
+tr -d '©' < "$INPUTFILE" > /tmp/bt_filtered.$$
+
+"$JAVA" -jar make/bastokenizer-tools-bt-0.2.0.jar $* /tmp/bt_filtered.$$
+RESULT=$?
+
+rm /tmp/bt_filtered.$$
+exit $RESULT
diff --git a/make/tail.mk b/make/tail.mk
index 2596abd..2aee5ab 100644
--- a/make/tail.mk
+++ b/make/tail.mk
@@ -128,7 +128,7 @@ execute: $(DISKIMAGE)
 	make/errorFilter.sh $(CL65) $(MACHCONFIG) --cpu $(CPU) $(ASMFLAGS) -l -c -o $@ $<
 
 %.tok:	%.bas
-	make/bt $(BASICFLAGS) -o $@ $<
+	make/bt $< $(BASICFLAGS) -o $@
 
 $(OBJS): Makefile