diff --git a/test/promote_integral.cpp b/test/promote_integral.cpp
index ddee3977b..4178ef812 100644
--- a/test/promote_integral.cpp
+++ b/test/promote_integral.cpp
@@ -69,12 +69,17 @@ struct test_max_values
 {
     static inline void apply()
     {
+        // Use >= where value is guaranteed to never be greater than comparator
+        // but to avoid warning: comparing floating point with == is unsafe.
+
         Promoted min_value = (std::numeric_limits<Integral>::min)();
         min_value *= min_value;
-        BOOST_CHECK(absolute_value<Promoted>::apply(min_value) == min_value);
+        BOOST_CHECK(absolute_value<Promoted>::apply(min_value) >= min_value);
+        BOOST_CHECK(absolute_value<Promoted>::apply(min_value) <= min_value);
         Promoted max_value = (std::numeric_limits<Integral>::max)();
         max_value *= max_value;
-        BOOST_CHECK(absolute_value<Promoted>::apply(max_value) == max_value);
+        BOOST_CHECK(absolute_value<Promoted>::apply(max_value) >= max_value);
+        BOOST_CHECK(absolute_value<Promoted>::apply(max_value) <= max_value);
 
 #ifdef BOOST_GIL_TEST_DEBUG
         std::cout << "integral min_value^2: " << min_value << std::endl;