diff --git a/R/terminator_lat_lon.R b/R/terminator_lat_lon.R
index 0c2fe2f..2f712f6 100644
--- a/R/terminator_lat_lon.R
+++ b/R/terminator_lat_lon.R
@@ -9,7 +9,7 @@ terminator_lat_lon <- function(day = Sys.Date(), hrs_from=0, hrs_to=23, hrs_by=1
   purrr::map_df(seq(hrs_from, hrs_to, hrs_by), ~{
     terminator(
       as.integer((as.POSIXct(day) + (60*60*.x))),
-      -lon_from, lon_to, lon_by
+      lon_from, lon_to, lon_by
     ) -> out
     out$frame <- .x
     out