diff --git a/src/FixedPoints/SFixedMemberFunctions.h b/src/FixedPoints/SFixedMemberFunctions.h
index 3a0e7c7..9d1268b 100644
--- a/src/FixedPoints/SFixedMemberFunctions.h
+++ b/src/FixedPoints/SFixedMemberFunctions.h
@@ -221,14 +221,14 @@ constexpr SFixed<Integer, Fraction> SFixed<Integer, Fraction>::operator -() cons
 template< unsigned Integer, unsigned Fraction >
 SFixed<Integer, Fraction> & SFixed<Integer, Fraction>::operator ++()
 {
-	this->value += (1 << FractionSize);
+	this->value += (static_cast<InternalType>(1) << FractionSize);
 	return *this;
 }
 
 template< unsigned Integer, unsigned Fraction >
 SFixed<Integer, Fraction> & SFixed<Integer, Fraction>::operator --()
 {
-	this->value -= (1 << FractionSize);
+	this->value -= (static_cast<InternalType>(1) << FractionSize);
 	return *this;
 }
 
diff --git a/src/FixedPoints/UFixedMemberFunctions.h b/src/FixedPoints/UFixedMemberFunctions.h
index 4316cff..2540b9f 100644
--- a/src/FixedPoints/UFixedMemberFunctions.h
+++ b/src/FixedPoints/UFixedMemberFunctions.h
@@ -206,14 +206,14 @@ constexpr UFixed<Integer, Fraction> UFixed<Integer, Fraction>::fromInternal(cons
 template< unsigned Integer, unsigned Fraction >
 UFixed<Integer, Fraction> & UFixed<Integer, Fraction>::operator ++()
 {
-	this->value += (1 << FractionSize);
+	this->value += (static_cast<InternalType>(1) << FractionSize);
 	return *this;
 }
 
 template< unsigned Integer, unsigned Fraction >
 UFixed<Integer, Fraction> & UFixed<Integer, Fraction>::operator --()
 {
-	this->value -= (1 << FractionSize);
+	this->value -= (static_cast<InternalType>(1) << FractionSize);
 	return *this;
 }