diff --git a/CMakeLists.txt b/CMakeLists.txt
index ac9f636..8b9dde6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,7 @@ add_library(Greeter ${headers} ${sources})
 set_target_properties(Greeter PROPERTIES CXX_STANDARD 17)
 
 # being a cross-platform target, we enforce standards conformance on MSVC
-target_compile_options(Greeter PUBLIC "$<$<COMPILE_LANG_AND_ID:CXX,MSVC>:/permissive>")
+target_compile_options(Greeter PUBLIC "$<$<COMPILE_LANG_AND_ID:CXX,MSVC>:/permissive->")
 
 # Link dependencies
 target_link_libraries(Greeter PRIVATE fmt::fmt)