diff --git a/lib/aprsme_web/live/weather_live/callsign_view.ex b/lib/aprsme_web/live/weather_live/callsign_view.ex
index a468e89..4020699 100644
--- a/lib/aprsme_web/live/weather_live/callsign_view.ex
+++ b/lib/aprsme_web/live/weather_live/callsign_view.ex
@@ -212,15 +212,17 @@ defmodule AprsmeWeb.WeatherLive.CallsignView do
     end
   end
 
-  # Weather formatters mapping
-  @weather_formatters %{
-    temperature: {&WeatherUnits.format_temperature/2, ""},
-    wind_speed: {&WeatherUnits.format_wind_speed/2, " "},
-    wind_gust: {&WeatherUnits.format_wind_speed/2, " "},
-    rain_1h: {&WeatherUnits.format_rain/2, " "},
-    rain_24h: {&WeatherUnits.format_rain/2, " "},
-    rain_since_midnight: {&WeatherUnits.format_rain/2, " "}
-  }
+  # Weather formatters mapping (runtime function to avoid compile-time dependency)
+  defp weather_formatters do
+    %{
+      temperature: {&WeatherUnits.format_temperature/2, ""},
+      wind_speed: {&WeatherUnits.format_wind_speed/2, " "},
+      wind_gust: {&WeatherUnits.format_wind_speed/2, " "},
+      rain_1h: {&WeatherUnits.format_rain/2, " "},
+      rain_24h: {&WeatherUnits.format_rain/2, " "},
+      rain_since_midnight: {&WeatherUnits.format_rain/2, " "}
+    }
+  end
 
   @doc """
   Checks if a weather field has a valid value (not nil, "N/A", or empty).
@@ -254,7 +256,7 @@ defmodule AprsmeWeb.WeatherLive.CallsignView do
   end
 
   defp format_string_value(value, key, locale) do
-    case @weather_formatters[key] do
+    case weather_formatters()[key] do
       {formatter, separator} ->
         case Float.parse(value) do
           {num_value, _} ->
@@ -271,7 +273,7 @@ defmodule AprsmeWeb.WeatherLive.CallsignView do
   end
 
   defp format_numeric_value(value, key, locale) do
-    case @weather_formatters[key] do
+    case weather_formatters()[key] do
       {formatter, separator} ->
         {converted_value, unit} = formatter.(value, locale)
         "#{converted_value}#{separator}#{unit}"