diff --git a/libc/libc.x86_64.map b/libc/libc.x86_64.map
index ac9d009..15d6764 100644
--- a/libc/libc.x86_64.map
+++ b/libc/libc.x86_64.map
@@ -1199,6 +1199,11 @@
     hasmntopt;
     pthread_getname_np;
     setdomainname;
+    sighold;
+    sigignore;
+    sigpause;
+    sigrelse;
+    sigset;
 } LIBC_N;
 
 LIBC_PRIVATE {