diff --git a/CMakeLists.txt b/CMakeLists.txt
index eb53a08..8881dc0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,7 +37,7 @@ include_directories(SYSTEM
 	${Boost_INCLUDE_DIRS}
 )
 include_directories(
-	.
+	src/
 )
 link_directories(
 	${LIBJSON_LIB_DIR}
@@ -56,8 +56,8 @@ set_target_properties(json PROPERTIES IMPORTED_LOCATION_NOCONFIG "${LIBJSON_LIB_
 add_dependencies(json build_json)
 
 add_executable(${PROJECT_NAME}
-	main.cpp
-	WordReference.cpp
+	src/main.cpp
+	src/WordReference.cpp
 )
 target_link_libraries(${PROJECT_NAME}
 	${Boost_LIBRARIES}
diff --git a/WordReference.cpp b/src/WordReference.cpp
similarity index 100%
rename from WordReference.cpp
rename to src/WordReference.cpp
diff --git a/WordReference.hpp b/src/WordReference.hpp
similarity index 100%
rename from WordReference.hpp
rename to src/WordReference.hpp
diff --git a/main.cpp b/src/main.cpp
similarity index 100%
rename from main.cpp
rename to src/main.cpp
diff --git a/main.hpp b/src/main.hpp
similarity index 100%
rename from main.hpp
rename to src/main.hpp