diff --git a/Sources/SwiftOCA/OCP.1/Ocp1Connection+Connect.swift b/Sources/SwiftOCA/OCP.1/Ocp1Connection+Connect.swift
index 383f6df..972198f 100644
--- a/Sources/SwiftOCA/OCP.1/Ocp1Connection+Connect.swift
+++ b/Sources/SwiftOCA/OCP.1/Ocp1Connection+Connect.swift
@@ -288,7 +288,9 @@ extension Ocp1Connection {
   }
 
   public var currentConnectionState: Ocp1ConnectionState {
+#if canImport(Darwin)
     access(keyPath: \.currentConnectionState)
+#endif
     return _connectionState.value
   }