diff --git a/blackjack/CMakeLists.txt b/blackjack/CMakeLists.txt
index b440d2a..79a6b00 100644
--- a/blackjack/CMakeLists.txt
+++ b/blackjack/CMakeLists.txt
@@ -4,13 +4,16 @@ target_sources(blackjack
   ${CMAKE_CURRENT_SOURCE_DIR}/Deck.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Player.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Card.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/Deck.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/Player.hpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/Card.hpp
 )
 
 target_include_directories(blackjack
   PUBLIC
   ${CMAKE_CURRENT_LIST_DIR}
   ${PROJECT_BINARY_DIR}
-  ${PROJECT_DIR}/external
+  ${PROJECT_DIR}
 )
 
 target_compile_options(blackjack PRIVATE $<$<CONFIG:Debug>: