diff --git a/include/config/config.h.in b/include/config/config.h.in
index cf64c3143..ccc9dc53a 100644
--- a/include/config/config.h.in
+++ b/include/config/config.h.in
@@ -231,6 +231,8 @@
  *
  * \since version 3.17.2
  */
+#if !defined(WITHOUT_FREERDP_3x_DEPRECATED)
 #cmakedefine WITHOUT_FREERDP_3x_DEPRECATED
+#endif
 
 #endif /* FREERDP_CONFIG_H */