diff --git a/src/main/java/eu/m724/wtapi/provider/impl/openweathermap/OpenWeatherMapProvider.java b/src/main/java/eu/m724/wtapi/provider/impl/openweathermap/OpenWeatherMapProvider.java
index e6e4e51..c78eedf 100644
--- a/src/main/java/eu/m724/wtapi/provider/impl/openweathermap/OpenWeatherMapProvider.java
+++ b/src/main/java/eu/m724/wtapi/provider/impl/openweathermap/OpenWeatherMapProvider.java
@@ -22,12 +22,10 @@ import eu.m724.wtapi.provider.exception.QuotaExceededException;
 import eu.m724.wtapi.provider.exception.ServerProviderException;
 
 public class OpenWeatherMapProvider extends WeatherProvider {
-	private String requestUrlFormat;
 	private String apiKey;
 	
 	public OpenWeatherMapProvider(String apiKey) {
 		this.apiKey = apiKey;
-		this.requestUrlFormat = "https://api.openweathermap.org/data/2.5/weather?lat=%f&lon=%f&appid=" + apiKey;
 	}
 
 	@Override
@@ -44,8 +42,8 @@ public class OpenWeatherMapProvider extends WeatherProvider {
 
 	@Override
 	public CompletableFuture<Weather> getWeather(Coordinates coordinates) {
-		String url = String.format(
-				requestUrlFormat, coordinates.latitude, coordinates.longitude);
+		String url = "https://api.openweathermap.org/data/2.5/weather?lat=%f&lon=%f&appid=%s"
+				.formatted(coordinates.latitude, coordinates.longitude, apiKey);
 		
 		HttpRequest request = HttpRequest.newBuilder()
 				.uri(URI.create(url))