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-rw-r--r--luatexbase-modutils.dtx2
1 files changed, 1 insertions, 1 deletions
diff --git a/luatexbase-modutils.dtx b/luatexbase-modutils.dtx
index 57ffb1d..ae228b4 100644
--- a/luatexbase-modutils.dtx
+++ b/luatexbase-modutils.dtx
@@ -378,7 +378,7 @@ See the aforementioned source file(s) for copyright and licensing information.
% supporting Lua module and make sure |luaescapestring| is available.
%
% \begin{macrocode}
-\ifdefined\RequirePackage
+\ifx\csname\RequirePackage
\RequirePackage{luatexbase-loader}
\else
\input luatexbase-loader.sty