diff --git a/docs/examples/custom_systems.rst b/docs/examples/custom_systems.rst
index e93e0c4b..a4e93583 100644
--- a/docs/examples/custom_systems.rst
+++ b/docs/examples/custom_systems.rst
@@ -1,7 +1,7 @@
 custom_systems
 ==============
 
-.. literalinclude:: ../../example/references/custom_systems.cpp
+.. literalinclude:: ../../example/custom_systems.cpp
   :caption: custom_systems.cpp
   :start-at: #include
   :linenos:
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 36ac1959..b2f477b9 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -22,9 +22,12 @@
 
 cmake_minimum_required(VERSION 3.2)
 
+add_executable(hello_units hello_units.cpp)
+target_link_libraries(hello_units PRIVATE mp-units::core-fmt mp-units::core-io mp-units::si mp-units::si-international)
+
+add_executable(custom_systems custom_systems.cpp)
+target_link_libraries(custom_systems PRIVATE mp-units::core-io mp-units::si)
+
 add_subdirectory(alternative_namespaces)
 add_subdirectory(literals)
 add_subdirectory(references)
-
-add_executable(hello_units hello_units.cpp)
-target_link_libraries(hello_units PRIVATE mp-units::core-fmt mp-units::core-io mp-units::si mp-units::si-international)
diff --git a/example/references/custom_systems.cpp b/example/custom_systems.cpp
similarity index 100%
rename from example/references/custom_systems.cpp
rename to example/custom_systems.cpp
diff --git a/example/literals/CMakeLists.txt b/example/literals/CMakeLists.txt
index 380a0b2a..5f364b00 100644
--- a/example/literals/CMakeLists.txt
+++ b/example/literals/CMakeLists.txt
@@ -36,7 +36,6 @@ add_example(box_example mp-units::core-fmt mp-units::si)
 add_example(capacitor_time_curve mp-units::core-io mp-units::si)
 add_example(clcpp_response mp-units::core-fmt mp-units::core-io mp-units::si mp-units::si-iau mp-units::si-imperial mp-units::si-international mp-units::si-typographic mp-units::si-us)
 add_example(conversion_factor mp-units::core-fmt mp-units::core-io mp-units::si)
-add_example(custom_systems mp-units::core-io mp-units::si)
 add_example(experimental_angle mp-units::core-fmt mp-units::core-io mp-units::si)
 add_example(foot_pound_second mp-units::core-fmt mp-units::si-fps)
 add_example(kalman_filter-alpha_beta_filter_example2 mp-units::core-fmt mp-units::si)
diff --git a/example/references/CMakeLists.txt b/example/references/CMakeLists.txt
index 8a4d69bf..a0117447 100644
--- a/example/references/CMakeLists.txt
+++ b/example/references/CMakeLists.txt
@@ -36,7 +36,6 @@ add_example(box_example mp-units::core-fmt mp-units::si)
 add_example(capacitor_time_curve mp-units::core-io mp-units::si)
 add_example(clcpp_response mp-units::core-fmt mp-units::core-io mp-units::si mp-units::si-iau mp-units::si-imperial mp-units::si-international mp-units::si-typographic mp-units::si-us)
 add_example(conversion_factor mp-units::core-fmt mp-units::core-io mp-units::si)
-add_example(custom_systems mp-units::core-io mp-units::si)
 add_example(experimental_angle mp-units::core-fmt mp-units::core-io mp-units::si)
 add_example(foot_pound_second mp-units::core-fmt mp-units::si-fps)
 add_example(kalman_filter-alpha_beta_filter_example2 mp-units::core-fmt mp-units::si)