diff --git a/composeApp/build.gradle.kts b/composeApp/build.gradle.kts
index 74e39a6..78e29e1 100644
--- a/composeApp/build.gradle.kts
+++ b/composeApp/build.gradle.kts
@@ -127,7 +127,7 @@ kotlin {
     }
 }
 
-fun getenv(key: String) : String {
+fun getenv(key: String) : String? {
     return System.getenv(key) ?: System.getenv(key.uppercase())
 }