diff --git a/Sources/FirebladeECS/Hashing.swift b/Sources/FirebladeECS/Hashing.swift
index ad9314d..6a4f100 100644
--- a/Sources/FirebladeECS/Hashing.swift
+++ b/Sources/FirebladeECS/Hashing.swift
@@ -5,9 +5,9 @@
 //  Created by Christian Treffs on 16.10.17.
 //
 
-#if arch(x86_64) || arch(arm64) // 64 bit
+#if arch(x86_64) || arch(arm64) || arch(powerpc64) || arch(powerpc64le) || arch(s390x) // 64 bit
 private let kFibA: UInt = 0x9e3779b97f4a7c15 // = 11400714819323198485 aka Fibonacci Hash a value for 2^64; calculate by: 2^64 / (golden ratio)
-#elseif arch(i386) || arch(arm) // 32 bit
+#elseif arch(i386) || arch(arm) || os(watchOS) // 32 bit
 private let kFibA: UInt = 0x9e3779b9 // = 2654435769 aka Fibonacci Hash a value for 2^32; calculate by: 2^32 / (golden ratio)
 #else
 #error("unsupported architecture")