diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1369bd1..bcb58e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,7 @@ if(WIN32)
     )
 endif()
 
-if(WIN32)
+if(MSVC)
     target_compile_options(ls-qpack PRIVATE
         /Wall
         /wd4100 # unreffed parameter