diff --git a/src/memfile.c b/src/memfile.c
index 4db84df..56719ee 100644
--- a/src/memfile.c
+++ b/src/memfile.c
@@ -1312,7 +1312,7 @@
 #ifdef HAVE_FD_CLOEXEC
 	int fdflags = fcntl(mfp->mf_fd, F_GETFD);
 	if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
-	    fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
+	    (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
 #endif
 #if defined(HAVE_SELINUX) || defined(HAVE_SMACK)
 	mch_copy_sec(fname, mfp->mf_fname);