--- a/loader/CMakeLists.txt
+++ b/loader/CMakeLists.txt
@@ -334,7 +348,7 @@
     foreach(LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES} ${PLATFORM_LIBS})
         set(PRIVATE_LIBS "${PRIVATE_LIBS} -l${LIB}")
     endforeach()
-    if(WIN32)
+    if(MSVC)
         set(VULKAN_LIB_SUFFIX "-1")
     endif ()
     configure_file("vulkan.pc.in" "vulkan.pc" @ONLY)