diff --git a/CMakeLists.txt b/CMakeLists.txt
index a54c3b5..9b05d0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,15 +6,10 @@ if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
     message(FATAL_ERROR "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there.")
 endif()
 
-include(cmake/CPM.cmake)
 include(cmake/tools.cmake)
 
-CPMAddPackage(
-  NAME PackageProject.cmake
-  GITHUB_REPOSITORY TheLartians/PackageProject.cmake
-  VERSION 1.3
-)
-
-
 add_subdirectory(io)
 add_subdirectory(test)
+
+set_target_properties(io_test PROPERTIES EXCLUDE_FROM_ALL YES)
+set_target_properties(test_framework PROPERTIES EXCLUDE_FROM_ALL YES)
diff --git a/io/CMakeLists.txt b/io/CMakeLists.txt
index d2c10bb..89554af 100644
--- a/io/CMakeLists.txt
+++ b/io/CMakeLists.txt
@@ -5,6 +5,14 @@ project(io
   VERSION 0.1
 )
 
+include(../cmake/CPM.cmake)
+
+CPMAddPackage(
+  NAME PackageProject.cmake
+  GITHUB_REPOSITORY TheLartians/PackageProject.cmake
+  VERSION 1.3
+)
+
 file(GLOB_RECURSE headers CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/include/*.h")
 file(GLOB_RECURSE sources CONFIGURE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)