diff --git a/fixed_wide/src/fixed.rs b/fixed_wide/src/fixed.rs
index c754857..29f59b4 100644
--- a/fixed_wide/src/fixed.rs
+++ b/fixed_wide/src/fixed.rs
@@ -113,7 +113,7 @@ macro_rules! impl_additive_assign_operator {
 				BInt::<N>:From<U>,
 		{
 			fn $method(&mut self, other: U) {
-				self.bits.$method(BInt::<N>::from(other)<<F as u32);
+				self.bits.$method(BInt::<N>::from(other).shl(F as u32));
 			}
 		}
 	};