diff --git a/src/TreeBuilder.cpp b/src/TreeBuilder.cpp
index 12fdcfe..e704fc9 100644
--- a/src/TreeBuilder.cpp
+++ b/src/TreeBuilder.cpp
@@ -607,6 +607,7 @@ void TreeBuilder::processContainer(const Variable &variable, Node &node) {
         return;
       }
       break;
+    case SORTED_VEC_SET_TYPE:
     case CONTAINER_ADAPTER_TYPE: {
       node.pointer = next();
 
@@ -673,7 +674,6 @@ void TreeBuilder::processContainer(const Variable &variable, Node &node) {
       break;
     case SEQ_TYPE:
     case MICROLIST_TYPE:
-    case SORTED_VEC_SET_TYPE:
     case FEED_QUICK_HASH_SET:
     case FEED_QUICK_HASH_MAP:
     case FB_HASH_MAP_TYPE:
diff --git a/test/integration/CMakeLists.txt b/test/integration/CMakeLists.txt
index 1ec1d8d..a5a6bfc 100644
--- a/test/integration/CMakeLists.txt
+++ b/test/integration/CMakeLists.txt
@@ -18,6 +18,7 @@ set(INTEGRATION_TEST_CONFIGS
   primitives.toml
   references.toml
   simple_struct.toml
+  sorted_vector_set.toml
   std_array.toml
   std_conditional.toml
   std_deque_del_allocator.toml
diff --git a/test/integration/sorted_vector_set.toml b/test/integration/sorted_vector_set.toml
new file mode 100644
index 0000000..0260c8d
--- /dev/null
+++ b/test/integration/sorted_vector_set.toml
@@ -0,0 +1,47 @@
+includes = ["folly/sorted_vector_types.h"]
+definitions = '''
+    using folly::sorted_vector_set;
+'''
+
+[cases]
+  [cases.no_ints]
+    param_types = ["const sorted_vector_set<int>&"]
+    setup = "return {};"
+    expect_json = '''[{
+      "staticSize":24,
+      "dynamicSize":0,
+      "length":0,
+      "capacity":0,
+      "elementStaticSize":4,
+      "members":[{
+        "staticSize": 24,
+        "dynamicSize": 0,
+        "length": 0,
+        "capacity": 0,
+        "elementStaticSize": 4
+    }]}]'''
+
+  [cases.some_ints]
+    param_types = ["const sorted_vector_set<int>&"]
+    setup = '''
+      sorted_vector_set<int> is;
+      is.insert(1);
+      is.insert(3);
+      is.insert(2);
+      is.insert(3);
+      return is;
+    '''
+    expect_json = '''[{
+      "staticSize": 24,
+      "dynamicSize": 16,
+      "length":3,
+      "capacity":4,
+      "elementStaticSize":4,
+      "members": [{
+        "staticSize": 24,
+        "dynamicSize": 16,
+        "length": 3,
+        "capacity": 4,
+        "elementStaticSize": 4
+    }]}]
+    '''
diff --git a/types/sorted_vec_set_type.toml b/types/sorted_vec_set_type.toml
index e30f03d..2f013ac 100644
--- a/types/sorted_vec_set_type.toml
+++ b/types/sorted_vec_set_type.toml
@@ -14,19 +14,14 @@ void getSizeType(const %1%<T,Compare, Allocator, GrowthPolicy, Container> &conta
 
 func = """
 template <class T, class Compare, class Allocator, class GrowthPolicy, class Container>
-void getSizeType(const %1%<T,Compare, Allocator, GrowthPolicy, Container> &container, size_t& returnArg)
+void getSizeType(const %1%<T,Compare, Allocator, GrowthPolicy, Container> &containerAdapter, size_t& returnArg)
 {
-    SAVE_SIZE(sizeof(%1%<T,Compare, Allocator, GrowthPolicy, Container>));
+    SAVE_DATA((uintptr_t)&containerAdapter);
 
-    SAVE_DATA((uintptr_t)&container);
-    SAVE_DATA((uintptr_t)container.capacity());
-    SAVE_DATA((uintptr_t)container.size());
+    // Underlying container is grabbed by recursion, store only the exclusive size.
+    SAVE_SIZE(sizeof(%1%<T,Compare, Allocator, GrowthPolicy, Container>) - sizeof(Container));
 
-    SAVE_SIZE((container.capacity() - container.size()) * sizeof(T));
-
-    // The double ampersand is needed otherwise this loop doesn't work with vector<bool>
-    for (auto&& it: container) {
-        getSizeType(it, returnArg);
-    }
+    const Container &container = containerAdapter.get_container();
+    getSizeType(container, returnArg);
 }
 """