diff --git a/density.p b/density.p
index a484014b9d76420a347b29067234a3a164b08c61..8902f4864f829587c46edb117977341c56ac86a4 100644
--- a/density.p
+++ b/density.p
@@ -3,4 +3,4 @@ list = system(glob)
 print list
 set datafile separator ','
 unset key
-plot for [file in list] file using 2:3 w l lw 2 lc rgb "#F00000FF"
+plot for [file in list] file using 2:3 every ::2 w l lw 2 lc rgb "#F00000FF"