diff --git a/src/support/cleanse.cpp b/src/support/cleanse.cpp
index 17a4a4c2b..f895e9656 100644
--- a/src/support/cleanse.cpp
+++ b/src/support/cleanse.cpp
@@ -30,14 +30,14 @@
  */
 void memory_cleanse(void *ptr, size_t len)
 {
+#if defined(_MSC_VER)
+    SecureZeroMemory(ptr, len);
+#else
     std::memset(ptr, 0, len);
 
     /* As best as we can tell, this is sufficient to break any optimisations that
        might try to eliminate "superfluous" memsets. If there's an easy way to
        detect memset_s, it would be better to use that. */
-#if defined(_MSC_VER)
-    SecureZeroMemory(ptr, len);
-#else
     __asm__ __volatile__("" : : "r"(ptr) : "memory");
 #endif
 }