diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50aa36a..e4efff1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,9 @@ project(vxl C)
 
 set(CMAKE_C_STANDARD 99)
 
+if (NOT MSVC)
 add_compile_options(-Wall -Wextra -pedantic -std=c99 -Ofast)
+endif()
 
 add_library(vxl STATIC libvxl.c)