diff --git a/CMakeLists.txt b/CMakeLists.txt
index f38d5755..40697565 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,6 +44,7 @@ endif()
 string(REPLACE "-O3" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
 
 # Compilation time options.
+option(CURL_SUPPORT "cURL support" ON)
 option(OPENAL_SUPPORT "OpenAL support" ON)
 option(SYSTEMWIDE_SUPPORT "Enable systemwide installation of game assets" OFF)
 
@@ -109,6 +110,11 @@ if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
 	list(APPEND yquake2ServerLinkerFlags ${EXECINFO_LIBRARIES})
 endif()
 
+# cURL support.
+if (${CURL_SUPPORT})
+	add_definitions(-DUSE_CURL)
+endif()
+
 # OpenAL support.
 if(${OPENAL_SUPPORT})
 	find_package(OpenAL)
@@ -302,6 +308,8 @@ set(Client-Source
 	${CLIENT_SRC_DIR}/cl_screen.c
 	${CLIENT_SRC_DIR}/cl_tempentities.c
 	${CLIENT_SRC_DIR}/cl_view.c
+	${CLIENT_SRC_DIR}/curl/download.c
+	${CLIENT_SRC_DIR}/curl/qcurl.c
 	${CLIENT_SRC_DIR}/input/sdl.c
 	${CLIENT_SRC_DIR}/menu/menu.c
 	${CLIENT_SRC_DIR}/menu/qmenu.c
@@ -352,6 +360,8 @@ set(Client-Header
 	${CLIENT_SRC_DIR}/header/console.h
 	${CLIENT_SRC_DIR}/header/keyboard.h
 	${CLIENT_SRC_DIR}/header/screen.h
+	${CLIENT_SRC_DIR}/curl/header/download.h
+	${CLIENT_SRC_DIR}/curl/header/qcurl.h
 	${CLIENT_SRC_DIR}/input/header/input.h
 	${CLIENT_SRC_DIR}/menu/header/qmenu.h
 	${CLIENT_SRC_DIR}/sound/header/local.h