diff --git a/src/context/mod.rs b/src/context/mod.rs
index 3dcfc5b8e0..ceb5cf16a9 100644
--- a/src/context/mod.rs
+++ b/src/context/mod.rs
@@ -76,6 +76,7 @@ pub fn init() {
     context.sched_affinity = LogicalCpuSet::empty();
     context.sched_affinity.atomic_set(crate::cpu_id());
     context.name = Cow::Borrowed("kmain");
+    context.sig.procmask = 0;
 
     self::arch::EMPTY_CR3.call_once(|| unsafe { RmmA::table(TableKind::User) });