diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 46087e6..4d9ac57 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1291,6 +1291,7 @@
 LIBC_O {
   global:
     __system_property_read_callback; # future
+    __system_property_wait; # future
     bsd_signal; # arm x86 mips versioned=26
     catclose; # future
     catgets; # future