diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1d1ec04..c43893a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,11 +2,18 @@ cmake_minimum_required(VERSION 3.5.0)
 project(Test_Project VERSION 0.1.0 LANGUAGES C)
 
 # Add more c files in here
+# add_executable(Test_Project
+# main.c
+# hello.c
+# math_functions.c
+# struct_test.c
+# )
+
 add_executable(Test_Project
-main.c
-hello.c
-math_functions.c
-struct_test.c
+src/main.c
+src/hello.c
+src/math_functions.c
+src/struct_test.c
 )
 
 # https://discourse.cmake.org/t/how-to-properly-include-header-files/4762
diff --git a/hello.c b/src/hello.c
similarity index 100%
rename from hello.c
rename to src/hello.c
diff --git a/hello.h b/src/hello.h
similarity index 100%
rename from hello.h
rename to src/hello.h
diff --git a/main.c b/src/main.c
similarity index 100%
rename from main.c
rename to src/main.c
diff --git a/math_functions.c b/src/math_functions.c
similarity index 100%
rename from math_functions.c
rename to src/math_functions.c
diff --git a/math_functions.h b/src/math_functions.h
similarity index 100%
rename from math_functions.h
rename to src/math_functions.h
diff --git a/struct_test.c b/src/struct_test.c
similarity index 100%
rename from struct_test.c
rename to src/struct_test.c
diff --git a/struct_test.h b/src/struct_test.h
similarity index 100%
rename from struct_test.h
rename to src/struct_test.h