diff --git a/src/FixedPoints/SFixed.h b/src/FixedPoints/SFixed.h
index 93e8154..0cd6a87 100644
--- a/src/FixedPoints/SFixed.h
+++ b/src/FixedPoints/SFixed.h
@@ -44,7 +44,7 @@ public:
 
 	static constexpr uintmax_t InternalSize = FIXED_POINTS_DETAILS::BitSize<InternalType>::Value;
 	
-	using ShiftType = FIXED_POINTS_DETAILS::LeastUInt<LogicalSize>;
+	using ShiftType = FIXED_POINTS_DETAILS::LeastInt<LogicalSize>;
 	using MaskType = FIXED_POINTS_DETAILS::LeastUInt<LogicalSize>;
 		
 public: