diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f5fe2ce3a..1eabbad3cf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -288,10 +288,9 @@ if(SLIC3R_STATIC)
 endif()
 #set(Boost_DEBUG ON)
 # set(Boost_COMPILER "-mgw81")
-if(NOT WIN32)
-    # boost::beast::detail::base64 was introduced first in version 1.66.0
-    set(MINIMUM_BOOST_VERSION "1.66.0")
-endif()
+# boost::process was introduced first in version 1.64.0,
+# boost::beast::detail::base64 was introduced first in version 1.66.0
+set(MINIMUM_BOOST_VERSION "1.66.0")
 set(_boost_components "system;filesystem;thread;log;locale;regex;chrono;atomic;date_time")
 find_package(Boost ${MINIMUM_BOOST_VERSION} REQUIRED COMPONENTS ${_boost_components})