diff --git a/src/math/src/mod_arithmetics.cairo b/src/math/src/mod_arithmetics.cairo
index 106c1985..9b7ec186 100644
--- a/src/math/src/mod_arithmetics.cairo
+++ b/src/math/src/mod_arithmetics.cairo
@@ -146,7 +146,7 @@ pub fn pow_mod(mut base: u256, mut pow: u256, mod_non_zero: NonZero<u256>) -> u2
             result = mult_mod(result, base, mod_non_zero);
         }
         pow = q;
-        base = mult_mod(base, base, mod_non_zero);
+        base = sqr_mod(base, mod_non_zero);
     };
 
     result