diff --git a/scripts/functions/lf_unpaired_stats.R b/scripts/functions/lf_unpaired_stats.R
index 55473ff..fefb531 100644
--- a/scripts/functions/lf_unpaired_stats.R
+++ b/scripts/functions/lf_unpaired_stats.R
@@ -8,6 +8,7 @@ lf_unpaired_stats <- function(lf_data
                               , my_paired = FALSE
                               , stat_adj = "none"){
   
+  lf_data[[lf_stat_group]] = as.factor(lf_data[[lf_stat_group]])
   stat_formula = as.formula(paste0(lf_stat_value, "~", lf_stat_group))
   
   my_stat_df = compare_means(stat_formula