diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index ac3c242..f01de33 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,5 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 
+# fetch google test to use for testing
 include(FetchContent)
 
 FetchContent_Declare(
@@ -10,10 +11,16 @@ FetchContent_Declare(
 
 FetchContent_MakeAvailable(googletest)
 
+# Add test executables
 add_executable(self_test self_test.cpp)
 add_executable(C_Callback_test test_C_Callback.cpp)
+
+# Link against google test and the C_Callback library
 target_link_libraries(self_test gtest_main)
 target_link_libraries(C_Callback_test gtest_main C_Callback)
 
+# Ensure that C_Callback is built before the tests
+add_dependencies(C_Callback_test C_Callback)
+
 add_test(NAME self_test COMMAND self_test)
 add_test(NAME C_Callback_test COMMAND C_Callback_test)