diff --git a/include/boost/math/distributions/rayleigh.hpp b/include/boost/math/distributions/rayleigh.hpp
index bcb79cdc0..66d3d507a 100644
--- a/include/boost/math/distributions/rayleigh.hpp
+++ b/include/boost/math/distributions/rayleigh.hpp
@@ -81,7 +81,7 @@ template <class RealType, class Policy>
 inline const std::pair<RealType, RealType> range(const rayleigh_distribution<RealType, Policy>& /*dist*/)
 { // Range of permissible values for random variable x.
    using boost::math::tools::max_value;
-   return std::pair<RealType, RealType>(static_cast<RealType>(1), max_value<RealType>());
+   return std::pair<RealType, RealType>(static_cast<RealType>(0), max_value<RealType>());
 }
 
 template <class RealType, class Policy>
@@ -89,7 +89,7 @@ inline const std::pair<RealType, RealType> support(const rayleigh_distribution<R
 { // Range of supported values for random variable x.
    // This is range where cdf rises from 0 to 1, and outside it, the pdf is zero.
    using boost::math::tools::max_value;
-   return std::pair<RealType, RealType>((1),  max_value<RealType>());
+   return std::pair<RealType, RealType>((0),  max_value<RealType>());
 }
 
 template <class RealType, class Policy>