diff --git a/src/puml/class_diagram_generator.h b/src/puml/class_diagram_generator.h
index d853d09e..92dc0f5a 100644
--- a/src/puml/class_diagram_generator.h
+++ b/src/puml/class_diagram_generator.h
@@ -23,8 +23,8 @@
 #include "uml/class_diagram_visitor.h"
 #include "util/util.h"
 
-#include <cppast/libclang_parser.hpp>
 #include <cppast/cpp_entity_index.hpp>
+#include <cppast/libclang_parser.hpp>
 #include <glob/glob.hpp>
 
 #include <filesystem>
@@ -87,7 +87,7 @@ public:
             case relationship_t::kAggregation:
                 return "o--";
             case relationship_t::kContainment:
-                return "+--";
+                return "--+";
             case relationship_t::kAssociation:
                 return "-->";
             case relationship_t::kInstantiation:
@@ -224,6 +224,33 @@ public:
         }
 
         ostr << "}" << std::endl;
+
+        for (const auto &r : e.relationships) {
+            std::string destination;
+            if (r.destination.find("#") != std::string::npos ||
+                r.destination.find("@") != std::string::npos) {
+                destination = m_model.usr_to_name(
+                    m_config.using_namespace, r.destination);
+                if (destination.empty()) {
+                    ostr << "' ";
+                    destination = r.destination;
+                }
+            }
+            else {
+                destination = r.destination;
+            }
+
+            ostr << m_model.to_alias(m_config.using_namespace,
+                        ns_relative(m_config.using_namespace, e.name))
+                 << " " << to_string(r.type) << " "
+                 << m_model.to_alias(m_config.using_namespace,
+                        ns_relative(m_config.using_namespace, destination));
+
+            if (!r.label.empty())
+                ostr << " : " << r.label;
+
+            ostr << std::endl;
+        }
     }
 
     void generate(std::ostream &ostr) const
@@ -287,7 +314,8 @@ clanguml::model::class_diagram::diagram generate(
     }
 
     cppast::cpp_entity_index idx;
-    cppast::simple_file_parser<cppast::libclang_parser> parser{type_safe::ref(idx)};
+    cppast::simple_file_parser<cppast::libclang_parser> parser{
+        type_safe::ref(idx)};
 
     // Process all matching translation units
     clanguml::visitor::class_diagram::tu_visitor ctx(d, diagram);
diff --git a/src/uml/class_diagram_model.h b/src/uml/class_diagram_model.h
index 52a27e9b..fca6f73d 100644
--- a/src/uml/class_diagram_model.h
+++ b/src/uml/class_diagram_model.h
@@ -211,6 +211,7 @@ public:
 
 struct enum_ : public element {
     std::vector<std::string> constants;
+    std::vector<class_relationship> relationships;
 
     friend bool operator==(const enum_ &l, const enum_ &r)
     {
diff --git a/src/uml/class_diagram_visitor.cc b/src/uml/class_diagram_visitor.cc
index 6d1eb070..499a3330 100644
--- a/src/uml/class_diagram_visitor.cc
+++ b/src/uml/class_diagram_visitor.cc
@@ -19,11 +19,11 @@
 
 #include <cppast/cpp_array_type.hpp>
 #include <cppast/cpp_entity_kind.hpp>
+#include <cppast/cpp_enum.hpp>
 #include <cppast/cpp_member_function.hpp>
 #include <cppast/cpp_member_variable.hpp>
 #include <cppast/cpp_template.hpp>
 #include <cppast/cpp_variable.hpp>
-#include <cppast/cpp_enum.hpp>
 #include <spdlog/spdlog.h>
 
 namespace clanguml {
@@ -71,17 +71,17 @@ void tu_visitor::operator()(const cppast::cpp_entity &file)
     cppast::visit(file,
         [&, this](const cppast::cpp_entity &e, cppast::visitor_info info) {
             if (e.kind() == cppast::cpp_entity_kind::class_t) {
-                spdlog::debug("{}'{}' - {}", prefix,
-                    cx::util::full_name(e), cppast::to_string(e.kind()));
+                spdlog::debug("{}'{}' - {}", prefix, cx::util::full_name(e),
+                    cppast::to_string(e.kind()));
 
                 auto &cls = static_cast<const cppast::cpp_class &>(e);
 
                 if (ctx.config.should_include(cx::util::fully_prefixed(cls)))
                     process_class_declaration(cls);
             }
-            else if(e.kind() == cppast::cpp_entity_kind::enum_t) {
-                spdlog::debug("{}'{}' - {}", prefix,
-                    cx::util::full_name(e), cppast::to_string(e.kind()));
+            else if (e.kind() == cppast::cpp_entity_kind::enum_t) {
+                spdlog::debug("{}'{}' - {}", prefix, cx::util::full_name(e),
+                    cppast::to_string(e.kind()));
 
                 auto &enm = static_cast<const cppast::cpp_enum &>(e);
 
@@ -91,16 +91,32 @@ void tu_visitor::operator()(const cppast::cpp_entity &file)
         });
 }
 
-void tu_visitor::process_enum_declaration(const cppast::cpp_enum &enm) {
+void tu_visitor::process_enum_declaration(const cppast::cpp_enum &enm)
+{
     enum_ e;
     e.name = cx::util::full_name(enm);
 
-    for(const auto& ev : enm) {
-        if(ev.kind() == cppast::cpp_entity_kind::enum_value_t) {
+    for (const auto &ev : enm) {
+        if (ev.kind() == cppast::cpp_entity_kind::enum_value_t) {
             e.constants.push_back(ev.name());
         }
     }
 
+    // Find if class is contained in another class
+    for (auto cur = enm.parent(); cur; cur = cur.value().parent()) {
+        // find nearest parent class, if any
+        if (cur.value().kind() == cppast::cpp_entity_kind::class_t) {
+            class_relationship containment;
+            containment.type = relationship_t::kContainment;
+            containment.destination = cx::util::full_name(cur.value());
+            e.relationships.emplace_back(std::move(containment));
+
+            spdlog::debug("Added relationship {} +-- {}", e.name,
+                containment.destination);
+            break;
+        }
+    }
+
     ctx.d.add_enum(std::move(e));
 }
 
@@ -199,6 +215,22 @@ void tu_visitor::process_class_declaration(const cppast::cpp_class &cls)
         }
     }
 
+    // Find if class is contained in another class
+    for (auto cur = cls.parent(); cur; cur = cur.value().parent()) {
+        // find nearest parent class, if any
+        if (cur.value().kind() == cppast::cpp_entity_kind::class_t) {
+            class_relationship containment;
+            containment.type = relationship_t::kContainment;
+            containment.destination = cx::util::full_name(cur.value());
+            c.relationships.emplace_back(std::move(containment));
+
+            spdlog::debug("Added relationship {} +-- {}",
+                c.full_name(ctx.config.using_namespace),
+                containment.destination);
+            break;
+        }
+    }
+
     ctx.d.add_class(std::move(c));
 }
 
diff --git a/tests/test_cases.h b/tests/test_cases.h
index 6931430a..acf87f62 100644
--- a/tests/test_cases.h
+++ b/tests/test_cases.h
@@ -265,7 +265,7 @@ ContainsMatcher IsInnerClass(std::string const &parent,
     CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes)
 {
     return ContainsMatcher(
-        CasedString(parent + " +-- " + inner, caseSensitivity));
+        CasedString(inner + " --+ " + parent, caseSensitivity));
 }
 
 ContainsMatcher IsAssociation(std::string const &from, std::string const &to,