diff --git a/CHANGELOG.md b/CHANGELOG.md
index 822b5527..86702235 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@
 * Rare crash when scrolling and the new viewport ended up **exactly**
   on the wrap around.
 * Selection handling when viewport wrapped around.
+* Restore signal mask in the slave process.
 
 
 ### Security
diff --git a/slave.c b/slave.c
index 57bedc75..26ccdf6f 100644
--- a/slave.c
+++ b/slave.c
@@ -166,10 +166,13 @@ slave_spawn(int ptmx, int argc, const char *cwd, char *const *argv,
         }
 
         /* Restore signals */
+        sigset_t mask;
+        sigemptyset(&mask);
         const struct sigaction sa = {.sa_handler = SIG_DFL};
         if (sigaction(SIGINT, &sa, NULL) < 0 ||
             sigaction(SIGTERM, &sa, NULL) < 0 ||
-            sigaction(SIGHUP, &sa, NULL) < 0)
+            sigaction(SIGHUP, &sa, NULL) < 0 ||
+            sigprocmask(SIG_SETMASK, &mask, NULL) < 0)
         {
             const int _errno = errno;
             LOG_ERRNO_P("failed to restore signals", errno);