diff --git a/include/zephyr/posix/posix_features.h b/include/zephyr/posix/posix_features.h
index 4e15fbd6950197..eb3c4b44d2d8bd 100644
--- a/include/zephyr/posix/posix_features.h
+++ b/include/zephyr/posix/posix_features.h
@@ -314,13 +314,8 @@
 #define ATEXIT_MAX 8
 #endif
 
-#ifndef PAGE_SIZE
 #define PAGE_SIZE CONFIG_POSIX_PAGE_SIZE
-#endif
-
-#ifndef PAGESIZE
 #define PAGESIZE PAGE_SIZE
-#endif
 
 #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
 #define PTHREAD_KEYS_MAX              _POSIX_THREAD_KEYS_MAX