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-rw-r--r--src/signal/sigprocmask.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/signal/sigprocmask.c b/src/signal/sigprocmask.c
index 66b17a42..a272c10d 100644
--- a/src/signal/sigprocmask.c
+++ b/src/signal/sigprocmask.c
@@ -22,6 +22,7 @@ int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
 		set = &tmp;
 		sigdelset(&tmp, SIGCANCEL);
 		sigdelset(&tmp, SIGSYSCALL);
+		sigdelset(&tmp, SIGTIMER);
 	}
 	return __libc_sigprocmask(how, set, old);
 }