diff --git a/DESCRIPTION b/DESCRIPTION
index 953c87d..530ab21 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -3,7 +3,7 @@ Type: Package
 Title: Utilities for Working With the 'fireSense' Group of 'SpaDES' Modules
 Description: Utilities for working with the 'fireSense' group of 'SpaDES' modules.
 Date: 2023-10-13
-Version: 0.0.5.9052
+Version: 0.0.5.9053
 Authors@R: c(
     person("Jean", "Marchal", email = "jean.d.marchal@gmail.com",
            role = c("aut")),
diff --git a/R/makeLociList.R b/R/makeLociList.R
index 3846c44..0e4a5f6 100644
--- a/R/makeLociList.R
+++ b/R/makeLociList.R
@@ -53,6 +53,11 @@ makeLociList <- function(ras, pts, idsCol = "FIRE_ID", dateCol = "YEAR", sizeCol
     "m2" = 1,
     stop("Must provide sizeColUnits either ha or m2")
   )
+  #Check if loci sizes are numeric, otherwise the rescaling fails
+  if (!inherits(x = lociDF$size, what = "numeric")){
+    warning(paste0("Fire sizes were classified as ", class(lociDF$size),". Converting to numeric."))
+    lociDF[, size := as.numeric(size)]
+  }
   set(lociDF, NULL, "size", round(lociDF$size / (prod(res(ras)) / divisor), 0))
 
   for (index in colnames(lociDF)) {