  Camarena, Cs\'{o}ka, Hubai, Lippner, and Lov\'{a}sz introduced the notion of
positive graphs. This notion naturally extends to $r$-uniform hypergraphs. In
the case when $r$ is odd, we prove that a hypergraph is positive if and only if
its Levi graph is positive. As an application, we show that the $1$-subdivision
of $K_{r,r}$ is not a positive graph when $r$ is odd.
