diff --git a/src/config/config.cc b/src/config/config.cc
index 39346cd5..e331e08c 100644
--- a/src/config/config.cc
+++ b/src/config/config.cc
@@ -16,6 +16,7 @@
  * limitations under the License.
  */
 #include "config.h"
+#include <filesystem>
 
 namespace clanguml {
 namespace config {
@@ -25,6 +26,12 @@ config load(const std::string &config_file)
     try {
         YAML::Node doc = YAML::LoadFile(config_file);
 
+        // Store the parent path of the config_file to properly resolve
+        // the include files paths
+        auto config_file_path = std::filesystem::path{config_file};
+        doc.force_insert(
+            "__parent_path", config_file_path.parent_path().string());
+
         return doc.as<config>();
     }
     catch (YAML::BadFile &e) {
@@ -416,8 +423,11 @@ template <> struct convert<config> {
             std::shared_ptr<clanguml::config::diagram> diagram_config{};
 
             if (has_key(d.second, "include!")) {
-                YAML::Node node =
-                    YAML::LoadFile(d.second["include!"].as<std::string>());
+                auto parent_path = node["__parent_path"].as<std::string>();
+                auto include_path = std::filesystem::path{parent_path};
+                include_path /= d.second["include!"].as<std::string>();
+
+                YAML::Node node = YAML::LoadFile(include_path.string());
 
                 diagram_config = parse_diagram_config(node);
             }
diff --git a/tests/test_config.cc b/tests/test_config.cc
index 93546ef9..159ca2be 100644
--- a/tests/test_config.cc
+++ b/tests/test_config.cc
@@ -51,4 +51,24 @@ TEST_CASE("Test config inherited", "[unit-test]")
     CHECK(cus.glob()[0] == "src/main.cc");
     CHECK(clanguml::util::contains(cus.using_namespace(), "clanguml::ns1"));
     CHECK(cus.include_relations_also_as_members());
+}
+
+TEST_CASE("Test config includes", "[unit-test]")
+{
+    auto cfg = clanguml::config::load("./test_config_data/includes.yml");
+
+    CHECK(cfg.diagrams.size() == 2);
+    auto &def = *cfg.diagrams["class_1"];
+    CHECK(def.type() == clanguml::config::diagram_type::class_diagram);
+    CHECK(def.glob().size() == 2);
+    CHECK(def.glob()[0] == "src/**/*.cc");
+    CHECK(def.glob()[1] == "src/**/*.h");
+    CHECK(clanguml::util::contains(def.using_namespace(), "clanguml"));
+
+    auto &cus = *cfg.diagrams["class_2"];
+    CHECK(cus.type() == clanguml::config::diagram_type::class_diagram);
+    CHECK(cus.glob().size() == 1);
+    CHECK(cus.glob()[0] == "src/main.cc");
+    CHECK(clanguml::util::contains(cus.using_namespace(), "clanguml::ns1"));
+    CHECK(cus.include_relations_also_as_members());
 }
\ No newline at end of file
diff --git a/tests/test_config_data/includes.yml b/tests/test_config_data/includes.yml
new file mode 100644
index 00000000..edbf64e4
--- /dev/null
+++ b/tests/test_config_data/includes.yml
@@ -0,0 +1,18 @@
+compilation_database_dir: debug
+output_directory: output
+include_relations_also_as_members: false
+using_namespace:
+  - clanguml
+include:
+  namespaces:
+    - clanguml
+    - ABCD
+glob:
+  - src/**/*.cc
+  - src/**/*.h
+
+diagrams:
+  class_1:
+    include!: includes1.yml
+  class_2:
+    include!: includes2.yml
diff --git a/tests/test_config_data/includes1.yml b/tests/test_config_data/includes1.yml
new file mode 100644
index 00000000..ed1b5e31
--- /dev/null
+++ b/tests/test_config_data/includes1.yml
@@ -0,0 +1 @@
+type: class
\ No newline at end of file
diff --git a/tests/test_config_data/includes2.yml b/tests/test_config_data/includes2.yml
new file mode 100644
index 00000000..623edbd5
--- /dev/null
+++ b/tests/test_config_data/includes2.yml
@@ -0,0 +1,6 @@
+type: class
+using_namespace:
+  - clanguml::ns1
+include_relations_also_as_members: true
+glob:
+  - src/main.cc