diff --git a/intern/ghost/intern/GHOST_ContextVK.cc b/intern/ghost/intern/GHOST_ContextVK.cc
index 556a31ece6b..14a1059b1a8 100644
--- a/intern/ghost/intern/GHOST_ContextVK.cc
+++ b/intern/ghost/intern/GHOST_ContextVK.cc
@@ -21,6 +21,10 @@
 
 #include "vulkan/vk_ghost_api.hh"
 
+#if !defined(_WIN32) or defined(_M_ARM64)
+/* Silence compilation warning on non-windows x64 systems. */
+#  define VMA_EXTERNAL_MEMORY_WIN32 0
+#endif
 #include "vk_mem_alloc.h"
 
 #include "CLG_log.h"