diff --git a/Sources/LittleBlueTooth/Classes/Model/LittleBlueToothCharacteristic.swift b/Sources/LittleBlueTooth/Classes/Model/LittleBlueToothCharacteristic.swift
index 7dbf0fb..26ea8d9 100644
--- a/Sources/LittleBlueTooth/Classes/Model/LittleBlueToothCharacteristic.swift
+++ b/Sources/LittleBlueTooth/Classes/Model/LittleBlueToothCharacteristic.swift
@@ -49,7 +49,11 @@ public struct LittleBlueToothCharacteristic: Identifiable {
     /// - returns: An instance of `LittleBlueToothCharacteristic`.
     public init(with characteristic: CBCharacteristic) {
         // Couldn't get rid of this orrible compiler flags but it is present to make work SPM build and Xcode build
-#if (TEST || Xcode) && swift(>=5.5) && !targetEnvironment(macCatalyst)
+#if TEST
+        guard let service = characteristic.service else {
+            fatalError("There must be a service associated to the characteristic")
+        }
+#elseif ((os(iOS) && !targetEnvironment(macCatalyst)) || os(tvOS) || os(watchOS)) && swift(>=5.5)
         guard let service = characteristic.service else {
             fatalError("There must be a service associated to the characteristic")
         }