diff --git a/Source/Device.swift b/Source/Device.swift
index 2126c142..7501c97b 100644
--- a/Source/Device.swift
+++ b/Source/Device.swift
@@ -239,15 +239,17 @@ public enum Device {
       case "iPad5,1", "iPad5,2":                      return iPadMini4
       case "iPad6,3", "iPad6,4":                      return iPadPro9Inch
       case "iPad6,7", "iPad6,8":                      return iPadPro12Inch
-      // swiftlint:disable:next force_unwrapping
-      case "i386", "x86_64":                          return simulator(mapToDevice(identifier: String(validatingUTF8: getenv("SIMULATOR_MODEL_IDENTIFIER"))!))
+      case "i386", "x86_64":                          return simulator(mapToDevice(
+                                                        identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "iOS"
+                                                      ))
       default:                                        return unknown(identifier)
       }
     #elseif os(tvOS)
       switch identifier {
       case "AppleTV5,3":                              return appleTV4
-      // swiftlint:disable:next force_unwrapping
-      case "i386", "x86_64":                          return simulator(mapToDevice(identifier: String(validatingUTF8: getenv("SIMULATOR_MODEL_IDENTIFIER"))!))
+      case "i386", "x86_64":                          return simulator(mapToDevice(
+                                                        identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "tvOS"
+                                                      ))
       default:                                        return unknown(identifier)
       }
     #endif