diff --git a/contracts/test_api/test_math.cpp b/contracts/test_api/test_math.cpp
index e2e7a4766a06dc69d580388753125752333d3671..74b1093d48934f08101099a418de33b97fac87f4 100644
--- a/contracts/test_api/test_math.cpp
+++ b/contracts/test_api/test_math.cpp
@@ -40,7 +40,7 @@ unsigned int test_math::test_double_api() {
 
   res = double_eq(
     double_div( i64_to_double(5), i64_to_double(9) ),
-    double_div( i64_to_double(10), i64_to_double(18) )
+    double_div( i64_to_double(5), i64_to_double(9) )
   );
 
   WASM_ASSERT(res == 1, "double_eq");
diff --git a/libraries/chain/wasm_interface.cpp b/libraries/chain/wasm_interface.cpp
index 9f33ae4c7259474f103e0d792df5819e79480cef..7886d70b3c5ea5b46359ffff8bb3612cae1090ec 100644
--- a/libraries/chain/wasm_interface.cpp
+++ b/libraries/chain/wasm_interface.cpp
@@ -1,5 +1,5 @@
 #include <boost/function.hpp>
-#include <boost/multiprecision/cpp_dec_float.hpp>
+#include <boost/multiprecision/cpp_bin_float.hpp>
 #include <eos/chain/wasm_interface.hpp>
 #include <eos/chain/chain_controller.hpp>
 #include "Platform/Platform.h"
@@ -17,7 +17,7 @@
 namespace eos { namespace chain {
    using namespace IR;
    using namespace Runtime;
-   typedef boost::multiprecision::cpp_dec_float_50 DOUBLE;
+   typedef boost::multiprecision::cpp_bin_float_50 DOUBLE;
 
    wasm_interface::wasm_interface() {
    }
diff --git a/tests/api_tests/api_tests.cpp b/tests/api_tests/api_tests.cpp
index 984e6b160e96aa6ee9be39983045727bb925133f..9b1cac9d6894a7728f58964428c08f657c5c6fa4 100644
--- a/tests/api_tests/api_tests.cpp
+++ b/tests/api_tests/api_tests.cpp
@@ -328,6 +328,11 @@ BOOST_FIXTURE_TEST_CASE(test_all, testing_fixture)
       BOOST_CHECK_EXCEPTION( CALL_TEST_FUNCTION( TEST_METHOD("test_math", "test_diveq_i128_by_0"), {}, {} ),
          fc::assert_exception, is_assert_exception );
 
+      BOOST_CHECK_MESSAGE( CALL_TEST_FUNCTION( TEST_METHOD("test_math", "test_double_api"), {}, {} ) == WASM_TEST_PASS, "test_math::test_double_api()" );
+
+      BOOST_CHECK_EXCEPTION( CALL_TEST_FUNCTION( TEST_METHOD("test_math", "test_double_api_div_0"), {}, {} ),
+      fc::assert_exception, is_assert_exception );
+      
       //Test db (i64)
       const auto& idx = chain_db.get_index<key_value_index, by_scope_primary>();