diff --git a/src/math/mathop.pysty b/src/math/mathop.pysty
index f15d21a..7ea4161 100644
--- a/src/math/mathop.pysty
+++ b/src/math/mathop.pysty
@@ -51,11 +51,11 @@ __END_OPTIONS_X__
 \def\gcd{\@ifstar\@__PACKAGE_PREFIX__gcd\@@__PACKAGE_PREFIX__gcd}
 
 \DeclareMathOperator{\@__PACKAGE_PREFIX__kgV}{kgV}
-\DeclareMathOperator{\@@__PACKAGE_PREFIX__kgV}{\if@__PACKAGE_PREFIX__english lcm\else kgV\fi}
+\DeclareMathOperator{\@@__PACKAGE_PREFIX__kgV}{__IF__(english) lcm\else kgV\fi}
 \def\kgV{\@ifstar\@__PACKAGE_PREFIX__kgV\@@__PACKAGE_PREFIX__kgV}
 
 \DeclareMathOperator{\@__PACKAGE_PREFIX__lcm}{lcm}
-\DeclareMathOperator{\@@__PACKAGE_PREFIX__lcm}{\if@__PACKAGE_PREFIX__english lcm\else kgV\fi}
+\DeclareMathOperator{\@@__PACKAGE_PREFIX__lcm}{__IF__(english) lcm\else kgV\fi}
 \def\lcm{\@ifstar\@__PACKAGE_PREFIX__lcm\@@__PACKAGE_PREFIX__lcm}
 
 %Complex numbers