diff --git a/src/hydra-queue-runner/build-remote.cc b/src/hydra-queue-runner/build-remote.cc
index f1c86e1d..3dec28ee 100644
--- a/src/hydra-queue-runner/build-remote.cc
+++ b/src/hydra-queue-runner/build-remote.cc
@@ -35,6 +35,8 @@ static void openConnection(Machine::ptr machine, Path tmpDir, int stderrFD, Chil
 
     child.pid = startProcess([&]() {
 
+        restoreSignals();
+
         if (dup2(to.readSide.get(), STDIN_FILENO) == -1)
             throw SysError("cannot dup input pipe to stdin");