diff --git a/ex00/Fixed.cpp b/ex00/Fixed.cpp
index a17d2e4..a171db3 100644
--- a/ex00/Fixed.cpp
+++ b/ex00/Fixed.cpp
@@ -8,12 +8,12 @@ Fixed::Fixed() {
   value = 0;
 }
 
-Fixed::Fixed(Fixed &other) {
+Fixed::Fixed(const Fixed &other) {
   std::cout << "Copy constructor called" << std::endl;
   this->value = other.value;
 }
 
-Fixed &Fixed::operator=(Fixed &other) {
+Fixed &Fixed::operator=(const Fixed &other) {
   std::cout << "Copy assignment operator called" << std::endl;
   this->setRawBits(other.getRawBits());
   return *this;
diff --git a/ex00/Fixed.hpp b/ex00/Fixed.hpp
index 6935e36..8d04aae 100644
--- a/ex00/Fixed.hpp
+++ b/ex00/Fixed.hpp
@@ -4,8 +4,8 @@
 class Fixed {
 public:
   Fixed();
-  Fixed(Fixed &other);
-  Fixed &operator=(Fixed &other);
+  Fixed(const Fixed &other);
+  Fixed &operator=(const Fixed &other);
   ~Fixed();
 
   int getRawBits(void) const;