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-rw-r--r--README.md2
1 files changed, 1 insertions, 1 deletions
diff --git a/README.md b/README.md
index 51a9a19..2bc7831 100644
--- a/README.md
+++ b/README.md
@@ -115,7 +115,7 @@ Before you submit a patch, run ``make check`` to execute
the test suite and check for
[xref](http://www.erlang.org/doc/man/xref.html) and
[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html)
-warnings.
+warnings. You may have to run ``make clean`` first.
[Dialyzer](http://www.erlang.org/doc/man/dialyzer.html) warnings are compared
against a set of safe-to-ignore warnings found in