diff --git a/test/standalone/csv_test.cpp b/test/standalone/csv_test.cpp
index 2a164083c..242bb1074 100644
--- a/test/standalone/csv_test.cpp
+++ b/test/standalone/csv_test.cpp
@@ -641,7 +641,7 @@ TEST_CASE("csv") {
     for (double d : { .0, +.0, 1e-06, -1e-06, 0.000001, 1.234e+16, 1.234e+16 }) {
       auto feature = fs->next();
       REQUIRE(bool(feature));
-      CHECK(feature->get("floats") == d);
+      CHECK(feature->get("floats").get<mapnik::value_double>() == Approx(d));
     }
   } // END SECTION
 
diff --git a/test/unit/core/box2d_test.cpp b/test/unit/core/box2d_test.cpp
index c51980794..0ed32f851 100644
--- a/test/unit/core/box2d_test.cpp
+++ b/test/unit/core/box2d_test.cpp
@@ -98,10 +98,10 @@ SECTION("envelope multiplication") {
     auto a = mapnik::box2d<double>(100.0, 100.0, 100.001, 100.001);
     a *= 5;
 
-    REQUIRE(std::abs(a.minx() -  99.9980) < 0.001);
-    REQUIRE(std::abs(a.miny() -  99.9980) < 0.001);
-    REQUIRE(std::abs(a.maxx() - 100.0030) < 0.001);
-    REQUIRE(std::abs(a.maxy() - 100.0030) < 0.001);
+    REQUIRE(a.minx() == Approx( 99.9980));
+    REQUIRE(a.miny() == Approx( 99.9980));
+    REQUIRE(a.maxx() == Approx(100.0030));
+    REQUIRE(a.maxy() == Approx(100.0030));
   }
 
   {