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-rw-r--r--math/ess/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/math/ess/Makefile b/math/ess/Makefile
index e616f0a0eae4..d981d9c222f8 100644
--- a/math/ess/Makefile
+++ b/math/ess/Makefile
@@ -23,6 +23,7 @@ OPTIONS_DEFINE= DOCS
.include <bsd.port.options.mk>
.if ${PORT_OPTIONS:MDOCS}
+USES+= makeinfo
INFO= ess
.endif