diff --git a/src/math/mathop.pysty b/src/math/mathop.pysty
index 7ea4161..3980318 100644
--- a/src/math/mathop.pysty
+++ b/src/math/mathop.pysty
@@ -43,11 +43,11 @@ __END_OPTIONS_X__
 % The starred versions of the four commands will ignore the language option and print their
 % exact names (without the *, of course)
 \DeclareMathOperator{\@__PACKAGE_PREFIX__ggT}{ggT}
-\DeclareMathOperator{\@@__PACKAGE_PREFIX__ggT}{\if@__PACKAGE_PREFIX__english gcd\else ggT\fi}
+\DeclareMathOperator{\@@__PACKAGE_PREFIX__ggT}{__IF__(english) gcd\else ggT\fi}
 \def\ggT{\@ifstar\@__PACKAGE_PREFIX__ggT\@@__PACKAGE_PREFIX__ggT}
 
 \DeclareMathOperator{\@__PACKAGE_PREFIX__gcd}{gcd}
-\DeclareMathOperator{\@@__PACKAGE_PREFIX__gcd}{\if@__PACKAGE_PREFIX__english gcd\else ggT\fi}
+\DeclareMathOperator{\@@__PACKAGE_PREFIX__gcd}{__IF__(english) gcd\else ggT\fi}
 \def\gcd{\@ifstar\@__PACKAGE_PREFIX__gcd\@@__PACKAGE_PREFIX__gcd}
 
 \DeclareMathOperator{\@__PACKAGE_PREFIX__kgV}{kgV}