diff --git a/expat/CMakeLists.txt b/expat/CMakeLists.txt
index e3564691..0dc5cf80 100644
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -133,7 +133,7 @@ if(MSVC)
     # Minimum supported MSVC version is 1910 = Visual Studio 15.0/2017
     # See also https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
     if(MSVC_VERSION VERSION_LESS 1910)
-        message(SEND_ERROR "MSVC_VERSION ${MSVC_VERSION} is not a supported Visual Studio compiler version. Please use Visual Studio 15.0/2017 or any later version.")
+        message(WARNING "MSVC_VERSION ${MSVC_VERSION} is not a supported Visual Studio compiler version. Please use Visual Studio 15.0/2017 or any later version.")
     endif()
 endif()