diff --git a/composeApp/build.gradle.kts b/composeApp/build.gradle.kts
index 8e58a01..e3c87f3 100644
--- a/composeApp/build.gradle.kts
+++ b/composeApp/build.gradle.kts
@@ -305,12 +305,12 @@ buildkonfig {
         if (file.exists())
             load(FileInputStream(file))
     }
-    val serverUrl = properties["SERVER_URL"] as String
-    val wsServerUrl = properties["WS_SERVER_URL"] as String
+    val serverUrl = properties["SERVER_URL"] as? String
+    val wsServerUrl = properties["WS_SERVER_URL"] as? String
     defaultConfigs {
         buildConfigField(STRING, "PROJECT_PATH", layout.projectDirectory.asFile.absolutePath, const = true)
-        buildConfigField(STRING, "SERVER_URL", serverUrl, const = true)
-        buildConfigField(STRING, "WS_SERVER_URL", wsServerUrl, const = true)
+        buildConfigField(STRING, "SERVER_URL", serverUrl ?: "", const = true)
+        buildConfigField(STRING, "WS_SERVER_URL", wsServerUrl ?: "", const = true)
         buildConfigField(BOOLEAN, "IS_PROD", isProd.toString(), const = true)
         buildConfigField(STRING, "FLAVOR", flavorStr, const = true)
     }