diff --git a/programs/winedbg/be_x86_64.c b/programs/winedbg/be_x86_64.c
index 029f9f1954f..17feb881a3f 100644
--- a/programs/winedbg/be_x86_64.c
+++ b/programs/winedbg/be_x86_64.c
@@ -19,6 +19,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
+#define NONAMELESSUNION
+
 #include "debugger.h"
 #include "wine/debug.h"
 
diff --git a/programs/winedbg/debugger.h b/programs/winedbg/debugger.h
index ba49f1ec7de..e8a4d7375fb 100644
--- a/programs/winedbg/debugger.h
+++ b/programs/winedbg/debugger.h
@@ -24,8 +24,6 @@
 #include <assert.h>
 #include <stdarg.h>
 
-#define NONAMELESSUNION
-#define NONAMELESSSTRUCT
 #include "ntstatus.h"
 #define WIN32_NO_STATUS
 #define WIN32_LEAN_AND_MEAN
diff --git a/programs/winedbg/symbol.c b/programs/winedbg/symbol.c
index 3069d660773..c43cba9d6d1 100644
--- a/programs/winedbg/symbol.c
+++ b/programs/winedbg/symbol.c
@@ -19,9 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#define NONAMELESSUNION
-#define NONAMELESSSTRUCT
-
 #include "config.h"
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/programs/winedbg/tgt_module.c b/programs/winedbg/tgt_module.c
index 44e3c9f8832..58c42826897 100644
--- a/programs/winedbg/tgt_module.c
+++ b/programs/winedbg/tgt_module.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#define NONAMELESSUNION
-#define NONAMELESSSTRUCT
-
 #include "config.h"
 
 #include <stdlib.h>