diff --git a/src/bin/e_wallpaper_gen_main.c b/src/bin/e_wallpaper_gen_main.c
index 3c1d96df5..cafb3a84f 100644
--- a/src/bin/e_wallpaper_gen_main.c
+++ b/src/bin/e_wallpaper_gen_main.c
@@ -479,7 +479,7 @@ elm_main(int argc, char **argv)
            "}\n");
    fclose(f);
    if (snprintf(cmd_buf, sizeof(cmd_buf),
-                "%s -fastdecomp -id %s -fd %s -sd %s -vd %s -dd %s -md %s "
+                "%s -fastdecomp -threads -id %s -fd %s -sd %s -vd %s -dd %s -md %s "
                 "%s/bg.edc %s",
                 edje_cc, dir, dir, dir, dir, dir, dir,
                 dir, outfile) >= (int)sizeof(cmd_buf))