diff --git a/lib/hcrypto/rand-unix.c b/lib/hcrypto/rand-unix.c
index c52155baa..e0299589c 100644
--- a/lib/hcrypto/rand-unix.c
+++ b/lib/hcrypto/rand-unix.c
@@ -82,7 +82,8 @@ unix_seed(const void *indata, int size)
     if (fd < 0)
 	return;
 
-    write(fd, indata, size);
+    if (write(fd, indata, size) != size)
+	; /* don't care */
     close(fd);
 
 }