diff --git a/include/zephyr/posix/posix_features.h b/include/zephyr/posix/posix_features.h
index e4a91c6fc92cec..418a1a8557bdbb 100644
--- a/include/zephyr/posix/posix_features.h
+++ b/include/zephyr/posix/posix_features.h
@@ -27,6 +27,11 @@
 #define _POSIX_AEP_REALTIME_DEDICATED 200312L
 #endif
 
+/*
+ * Subprofiling Considerations
+ */
+#define _POSIX_SUBPROFILE 1
+
 /*
  * POSIX System Interfaces
  */