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Diffstat (limited to 'source/luametatex/source/luaoptional/lmtlz4.c')
-rw-r--r--source/luametatex/source/luaoptional/lmtlz4.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/source/luametatex/source/luaoptional/lmtlz4.c b/source/luametatex/source/luaoptional/lmtlz4.c
index d54442635..4d4542ac3 100644
--- a/source/luametatex/source/luaoptional/lmtlz4.c
+++ b/source/luametatex/source/luaoptional/lmtlz4.c
@@ -5,6 +5,7 @@
# include <stdlib.h>
# include "luametatex.h"
+# include "lmtoptional.h"
# define LZ4F_VERSION 100 /* used to check for an incompatible API breaking change */