diff --git a/src/main.c b/src/main.c
index 68a50f4666..4569042a2a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -146,7 +146,7 @@ static gboolean quit_early = FALSE;
 static void
 nm_signal_handler (int signo)
 {
-	static int in_fatal = 0;
+	static int in_fatal = 0, x;
 
 	/* avoid loops */
 	if (in_fatal > 0)
@@ -168,7 +168,7 @@ nm_signal_handler (int signo)
 		--in_fatal;
 		nm_log_warn (LOGD_CORE, "caught signal %d, shutting down abnormally. Generating backtrace...", signo);
 		nm_logging_backtrace ();
-		(void) write (quit_pipe[1], "X", 1);
+		x = write (quit_pipe[1], "X", 1);
 		break;
 	case SIGINT:
 	case SIGTERM:
@@ -176,7 +176,7 @@ nm_signal_handler (int signo)
 		--in_fatal;
 		nm_log_info (LOGD_CORE, "caught signal %d, shutting down normally.", signo);
 		quit_early = TRUE;
-		(void) write (quit_pipe[1], "X", 1);
+		x = write (quit_pipe[1], "X", 1);
 		break;
 	case SIGHUP:
 		--in_fatal;