Index: trunk/src_plugins/io_bxl/read.c
===================================================================
--- trunk/src_plugins/io_bxl/read.c	(revision 30837)
+++ trunk/src_plugins/io_bxl/read.c	(revision 30838)
@@ -671,8 +671,10 @@
 			if (tok == UREGLEX_MORE)
 				continue;
 
-			if ((tok == UREGLEX_NO_MATCH) || (tok == UREGLEX_TOO_LONG))
+			if ((tok == UREGLEX_NO_MATCH) || (tok == UREGLEX_TOO_LONG)) {
+				fclose(f);
 				return -1; /* error - stop fast, don't read through the whole file */
+			}
 
 			/* simplified "grammar": find opening tokens, save the next token
 			   as ID and don't do anything until finding the closing token */