diff --git a/configure.in b/configure.in
index fe3644a..be7f20c 100644
--- a/configure.in
+++ b/configure.in
@@ -83,7 +83,7 @@ fi
 
 # you need doxygen to make dist.
 AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, true, false)
-if test $HAVE_SNDFILE = "false"; then
+if test $HAVE_DOXYGEN = "false"; then
              AC_MSG_WARN([*** doxygen not found, docs will not be built])
 fi