diff --git a/funcs/vroum.sh b/funcs/vroum.sh
index 7bb88e42..a3e8a132 100755
--- a/funcs/vroum.sh
+++ b/funcs/vroum.sh
@@ -8,7 +8,7 @@ W="640"
 H="480"
 grabopt=" -s 640x480 -v -p 0 -n 100 -c cos01 "
 
-mkdir V
+mkdir /tmp/V
 
 G=$(printf "%dx%d+0+0" $W $H)
 
@@ -23,7 +23,7 @@ do
 	./t -k $fval -v qsortrgb $src
 	echo $foo ' = ' $fval
 
-	dst=$(printf "V/%03d.png" $foo)
+	dst=$(printf "/tmp/V/%03d.png" $foo)
 
 	montage $src $out -geometry $G $dst