diff --git a/dlls/inetcpl.cpl/content.c b/dlls/inetcpl.cpl/content.c
index 8fb1729308e..d71c8b2326a 100644
--- a/dlls/inetcpl.cpl/content.c
+++ b/dlls/inetcpl.cpl/content.c
@@ -19,8 +19,6 @@
  *
  */
 
-#define NONAMELESSUNION
-
 #include <stdarg.h>
 #include <windef.h>
 #include <winbase.h>
diff --git a/dlls/inetcpl.cpl/general.c b/dlls/inetcpl.cpl/general.c
index 42948eaea09..0691579229f 100644
--- a/dlls/inetcpl.cpl/general.c
+++ b/dlls/inetcpl.cpl/general.c
@@ -19,8 +19,6 @@
  *
  */
 
-#define NONAMELESSUNION
-
 #include <stdarg.h>
 #include <windef.h>
 #include <winbase.h>
diff --git a/dlls/inetcpl.cpl/security.c b/dlls/inetcpl.cpl/security.c
index 48c487651f6..6d7905785ba 100644
--- a/dlls/inetcpl.cpl/security.c
+++ b/dlls/inetcpl.cpl/security.c
@@ -21,7 +21,6 @@
 
 #define COBJMACROS
 #define CONST_VTABLE
-#define NONAMELESSUNION
 
 #include <stdarg.h>
 #include <windef.h>