diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 9d51b8d..7332c08 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1303,6 +1303,11 @@
     hasmntopt;
     pthread_getname_np;
     setdomainname;
+    sighold;
+    sigignore;
+    sigpause;
+    sigrelse;
+    sigset;
 } LIBC_N;
 
 LIBC_PRIVATE {