diff --git a/src/test_lib_json/main.cpp b/src/test_lib_json/main.cpp
index fb00ccc..6154395 100644
--- a/src/test_lib_json/main.cpp
+++ b/src/test_lib_json/main.cpp
@@ -93,6 +93,8 @@ JSONTEST_FIXTURE( ValueTest, size )
    JSONTEST_ASSERT_PRED( checkMemberCount(object1_, 1) );
    JSONTEST_ASSERT_PRED( checkMemberCount(null_, 0) );
    JSONTEST_ASSERT_PRED( checkMemberCount(integer_, 0) );
+   JSONTEST_ASSERT_PRED( checkMemberCount(unsignedInteger_, 0) );
+   JSONTEST_ASSERT_PRED( checkMemberCount(smallUnsignedInteger_, 0) );
    JSONTEST_ASSERT_PRED( checkMemberCount(real_, 0) );
    JSONTEST_ASSERT_PRED( checkMemberCount(emptyString_, 0) );
    JSONTEST_ASSERT_PRED( checkMemberCount(string_, 0) );