diff --git a/CMakeLists.txt b/CMakeLists.txt
index a06f8a8c88..de45605c62 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,9 +2,6 @@ cmake_minimum_required (VERSION 3.10 FATAL_ERROR)
 
 if (NOT DEFINED BUILD_USE_VCPKG)
   set (BUILD_USE_VCPKG OFF CACHE BOOL "Use vcpkg for 3rdparty libraries.")
-  if (CMAKE_TOOLCHAIN_FILE MATCHES "vcpkg.cmake")
-    set (BUILD_USE_VCPKG ON)
-  endif()
 endif()
 
 if (BUILD_USE_VCPKG)