diff --git a/mix_tasks/update_geoname_data.ex b/mix_tasks/update_geoname_data.ex
index 712c8e4..2f11596 100644
--- a/mix_tasks/update_geoname_data.ex
+++ b/mix_tasks/update_geoname_data.ex
@@ -8,10 +8,14 @@ defmodule Mix.Tasks.UpdateGeonameData do
   The data source allCountries.txt clocks in at 1.5GB. Expect this to take a while.
   """
   def run(_) do
-    # System.cmd("wget", [@allcountries_src, "-O", "/tmp/allCountries.zip"])
-    # System.cmd("unzip", ["/tmp/allCountries.zip", "-d", "/tmp"])
+    tmp_txt = Path.join(System.tmp_dir!(), "allCountries.txt")
 
-    process_geonames_file("/tmp/allCountries.txt")
+    unless File.exists?(tmp_txt) do
+      System.cmd("wget", [@allcountries_src, "-O", "/tmp/allCountries.zip"])
+      System.cmd("unzip", ["/tmp/allCountries.zip", "-d", "/tmp"])
+    end
+
+    process_geonames_file(tmp_txt)
   end
 
   defp process_geonames_file(filename) do