diff --git a/src/common/execio.c b/src/common/execio.c
--- a/src/common/execio.c
+++ b/src/common/execio.c
@@ -229,6 +229,8 @@ int execio_close(struct execio *eio)
   */
   fprintf(stderr, "execio_close: running waitpid\n");
   waitpid(eio->child, &childstatus, 0);
+
+  free(eio);
   
   return 0;
 }