diff --git a/libbacktrace/fileline.c b/libbacktrace/fileline.c
index 68e80c6d2742..50a1e830c23c 100644
--- a/libbacktrace/fileline.c
+++ b/libbacktrace/fileline.c
@@ -48,8 +48,8 @@ POSSIBILITY OF SUCH DAMAGE.  */
 #endif
 
 #ifdef HAVE_WINDOWS_H
-#ifndef WIN32_MEAN_AND_LEAN
-#define WIN32_MEAN_AND_LEAN
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
 #endif
 
 #ifndef NOMINMAX
diff --git a/libbacktrace/pecoff.c b/libbacktrace/pecoff.c
index 15a73ff0b2aa..b96ec27af421 100644
--- a/libbacktrace/pecoff.c
+++ b/libbacktrace/pecoff.c
@@ -40,8 +40,8 @@ POSSIBILITY OF SUCH DAMAGE.  */
 #include "internal.h"
 
 #ifdef HAVE_WINDOWS_H
-#ifndef WIN32_MEAN_AND_LEAN
-#define WIN32_MEAN_AND_LEAN
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
 #endif
 
 #ifndef NOMINMAX