diff --git a/configure.ac b/configure.ac
index b811ba5a..19cec256 100644
--- a/configure.ac
+++ b/configure.ac
@@ -207,7 +207,6 @@ AC_ARG_WITH(safecode,
 ])
 
 AC_SUBST([MAINT])
-AC_SUBST([SODIUM_PATH])
 AC_SUBST([LIBTOOL_EXTRA_FLAGS])
 
 dnl Libtool.