diff --git a/libc/include/signal.h b/libc/include/signal.h
index ffce1fa..1400328 100644
--- a/libc/include/signal.h
+++ b/libc/include/signal.h
@@ -136,16 +136,16 @@
 
 int sighold(int)
   __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead")))
-  __INTRODUCED_IN_FUTURE;
+  __INTRODUCED_IN(26);
 int sigignore(int)
-  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN_FUTURE;
+  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26);
 int sigpause(int)
-  __attribute__((deprecated("use sigsuspend() instead"))) __INTRODUCED_IN_FUTURE;
+  __attribute__((deprecated("use sigsuspend() instead"))) __INTRODUCED_IN(26);
 int sigrelse(int)
   __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead")))
-  __INTRODUCED_IN_FUTURE;
+  __INTRODUCED_IN(26);
 sighandler_t sigset(int, sighandler_t)
-  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN_FUTURE;
+  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26);
 
 int raise(int);
 int kill(pid_t, int);