1 files changed, 1 insertions, 1 deletions
diff --git a/src/nix-worker/nix-worker.cc b/src/nix-worker/nix-worker.cc
index f28905a24..eaa686667 100644
--- a/src/nix-worker/nix-worker.cc
+++ b/src/nix-worker/nix-worker.cc
@@ -135,7 +135,7 @@ static void sigPollHandler(int sigNo)
     catch (Error & e) {
         /* Shouldn't happen. */
         string s = "impossible: " + e.msg() + '\n';
-        write(STDERR_FILENO, s.c_str(), s.size());
+        write(STDERR_FILENO, s.data(), s.size());
         throw;
     }
 }