diff --git a/base/runtime/internal.odin b/base/runtime/internal.odin
index 7c8a8294b..5d8c5a4de 100644
--- a/base/runtime/internal.odin
+++ b/base/runtime/internal.odin
@@ -1110,7 +1110,7 @@ __read_bits :: proc "contextless" (dst, src: [^]byte, offset: uintptr, size: uin
 @(no_sanitize_address)
 __asan_unpoison_memory_region :: #force_inline proc "contextless" (address: rawptr, size: uint) {
 	foreign {
-		__asan_unpoison_memory_region :: proc(address: rawptr, size: uint) ---
+		__asan_unpoison_memory_region :: proc "system" (address: rawptr, size: uint) ---
 	}
 	__asan_unpoison_memory_region(address, size)
 }