diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index 1483c76228..c2497ff856 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -809,7 +809,7 @@ int read_full_file_full(
                                 return r;
 
                         if (bind(sk, &bsa.sa, r) < 0)
-                                return r;
+                                return -errno;
                 }
 
                 if (connect(sk, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)