diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b0ea167..f53c77eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,7 @@ if(USE_STANDALONE_ASIO)
         message(FATAL_ERROR "Standalone Asio not found")
     endif()
 else()
-    find_package(Boost 1.54.0 COMPONENTS system thread coroutine context REQUIRED)
+    find_package(Boost 1.54.0 COMPONENTS system thread coroutine context regex REQUIRED)
     target_link_libraries(simple-websocket-server INTERFACE ${Boost_LIBRARIES})
     target_include_directories(simple-websocket-server INTERFACE ${Boost_INCLUDE_DIR})
     if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)
@@ -53,7 +53,7 @@ target_include_directories(simple-websocket-server INTERFACE ${OPENSSL_INCLUDE_D
 if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}")
     add_executable(ws_examples ws_examples.cpp)
     target_link_libraries(ws_examples simple-websocket-server)
-    find_package(Boost 1.54.0 COMPONENTS system thread filesystem REQUIRED)
+    find_package(Boost 1.54.0 COMPONENTS system thread filesystem regex REQUIRED)
     target_link_libraries(ws_examples ${Boost_LIBRARIES})
     target_include_directories(ws_examples PRIVATE ${Boost_INCLUDE_DIR})
     if(OPENSSL_FOUND)