diff --git a/Utilities/types.h b/Utilities/types.h
index 83fe7a3141..f6aa9469bc 100644
--- a/Utilities/types.h
+++ b/Utilities/types.h
@@ -267,12 +267,20 @@ struct alignas(16) u128
 
 	u128() noexcept = default;
 
-	constexpr u128(u64 l) noexcept
-		: lo(l)
+	template <typename T, std::enable_if_t<std::is_unsigned_v<T>, u64> = 0>
+	constexpr u128(T arg) noexcept
+		: lo(arg)
 		, hi(0)
 	{
 	}
 
+	template <typename T, std::enable_if_t<std::is_signed_v<T>, s64> = 0>
+	constexpr u128(T arg) noexcept
+		: lo(s64{arg})
+		, hi(s64{arg} >> 63)
+	{
+	}
+
 	constexpr explicit operator bool() const noexcept
 	{
 		return !!(lo | hi);
@@ -490,24 +498,9 @@ struct alignas(16) s128
 	s64 hi;
 
 	s128() = default;
-
-	constexpr s128(s64 l)
-		: hi(l >> 63)
-		, lo(l)
-	{
-	}
-
-	constexpr s128(u64 l)
-		: hi(0)
-		, lo(l)
-	{
-	}
 };
 #endif
 
-CHECK_SIZE_ALIGN(u128, 16, 16);
-CHECK_SIZE_ALIGN(s128, 16, 16);
-
 template <>
 struct get_int_impl<16>
 {
diff --git a/rpcs3/stdafx.cpp b/rpcs3/stdafx.cpp
index 194e83c838..e40f3479b3 100644
--- a/rpcs3/stdafx.cpp
+++ b/rpcs3/stdafx.cpp
@@ -3,5 +3,8 @@
 
 static_assert(std::endian::native == std::endian::little || std::endian::native == std::endian::big);
 
+CHECK_SIZE_ALIGN(u128, 16, 16);
+CHECK_SIZE_ALIGN(s128, 16, 16);
+
 static_assert(be_t<u16>(1) + be_t<u32>(2) + be_t<u64>(3) == 6);
 static_assert(le_t<u16>(1) + le_t<u32>(2) + le_t<u64>(3) == 6);