diff --git a/Eigen/src/Core/MathFunctions.h b/Eigen/src/Core/MathFunctions.h
index c24665a4b..1311ca38f 100644
--- a/Eigen/src/Core/MathFunctions.h
+++ b/Eigen/src/Core/MathFunctions.h
@@ -854,7 +854,7 @@ template<> struct ei_random_impl<bool>
 {
   static inline bool run()
   {
-    return bool(ei_random<int>(0,1));
+    return ei_random<int>(0,1)==0 ? false : true;
   };
 };