[ipaccess] Use the right variable... *sigh*

* I will refactor all this in the future..
diff --git a/openbsc/src/ipaccess/ipaccess-config.c b/openbsc/src/ipaccess/ipaccess-config.c
index 8cd0526..016459b 100644
--- a/openbsc/src/ipaccess/ipaccess-config.c
+++ b/openbsc/src/ipaccess/ipaccess-config.c
@@ -220,7 +220,7 @@
 
 		if (sw_load2) {
 			msgb_v_put(msg, NM_ATT_SW_DESCR);
-			msgb_tl16v_put(msg, NM_ATT_FILE_ID, sw_load2->file_id_len, sw_load1->file_id);
+			msgb_tl16v_put(msg, NM_ATT_FILE_ID, sw_load2->file_id_len, sw_load2->file_id);
 			msgb_tl16v_put(msg, NM_ATT_FILE_VERSION, sw_load2->file_version_len,
 					sw_load2->file_version);
 		}