diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9da39e2..00c78c0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,8 +1,7 @@
 add_library(internal
-	${CMAKE_CURRENT_SOURCE_DIR}/dummy.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/url.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/headers.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/client.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/core/client.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/core/headers.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/core/url.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/http/request_serializer.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/http/chunked_decoder.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/http/response_parser.cpp
diff --git a/src/client.cpp b/src/core/client.cpp
similarity index 100%
rename from src/client.cpp
rename to src/core/client.cpp
diff --git a/src/headers.cpp b/src/core/headers.cpp
similarity index 100%
rename from src/headers.cpp
rename to src/core/headers.cpp
diff --git a/src/url.cpp b/src/core/url.cpp
similarity index 100%
rename from src/url.cpp
rename to src/core/url.cpp
diff --git a/src/dummy.cpp b/src/dummy.cpp
deleted file mode 100644
index 58bcfd9..0000000
--- a/src/dummy.cpp
+++ /dev/null
@@ -1 +0,0 @@
-void dummy() {}
\ No newline at end of file