diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index b35c72e..3441406 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1345,10 +1345,10 @@
 
 LIBC_P {
   global:
-    __freading; # introduced=P
-    __fwriting; # introduced=P
-    getlogin_r; # introduced=P
-    syncfs; # introduced=P
+    __freading; # future
+    __fwriting; # future
+    getlogin_r; # future
+    syncfs; # future
 } LIBC_O;
 
 LIBC_PRIVATE {