--- libpurple/protocols/msn/slplink.c
+++ libpurple/protocols/msn/slplink.c
@@ -556,13 +556,15 @@
 					PurpleXfer *xfer;
 
 					xfer = slpmsg->slpcall->xfer;
-
 					if (xfer != NULL)
 					{
 						purple_xfer_start(slpmsg->slpcall->xfer,
 							0, NULL, 0);
-						slpmsg->fp = ((PurpleXfer *)slpmsg->slpcall->xfer)->dest_fp;
-						xfer->dest_fp = NULL; /* Disable double fclose() */
+						if (slpmsg->slpcall->xfer)
+						{
+							slpmsg->fp = ((PurpleXfer *)slpmsg->slpcall->xfer)->dest_fp;
+							xfer->dest_fp = NULL; /* Disable double fclose() */
+						}
 					}
 				}
 			}
--- libpurple/protocols/msnp9/slplink.c
+++ libpurple/protocols/msnp9/slplink.c
@@ -555,13 +555,15 @@
 					PurpleXfer *xfer;
 
 					xfer = slpmsg->slpcall->xfer;
-
 					if (xfer != NULL)
 					{
 						purple_xfer_start(slpmsg->slpcall->xfer,
 							0, NULL, 0);
-						slpmsg->fp = ((PurpleXfer *)slpmsg->slpcall->xfer)->dest_fp;
-						xfer->dest_fp = NULL; /* Disable double fclose() */
+						if (slpmsg->slpcall->xfer)
+						{
+							slpmsg->fp = ((PurpleXfer *)slpmsg->slpcall->xfer)->dest_fp;
+							xfer->dest_fp = NULL; /* Disable double fclose() */
+						}
 					}
 				}
 			}