diff --git a/crates/starknet-types-core/src/curve/affine_point.rs b/crates/starknet-types-core/src/curve/affine_point.rs
index b86d017..0adacc9 100644
--- a/crates/starknet-types-core/src/curve/affine_point.rs
+++ b/crates/starknet-types-core/src/curve/affine_point.rs
@@ -42,7 +42,8 @@ impl core::ops::Neg for &AffinePoint {
     type Output = AffinePoint;
 
     fn neg(self) -> AffinePoint {
-        AffinePoint(ShortWeierstrassProjectivePoint::from_affine(self.x().0, -self.y().0).unwrap())
+        // AffinePoint(ShortWeierstrassProjectivePoint::from_affine(self.x().0, -self.y().0).unwrap())
+        AffinePoint(self.0.neg())
     }
 }
 
@@ -84,6 +85,7 @@ mod test {
                 ),
             )
             .unwrap()
-        )
+        );
+        assert_eq!(-&AffinePoint::identity(), AffinePoint::identity());
     }
 }