diff --git a/src/buffer.c b/src/buffer.c
index 243593a..58e9718 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -225,7 +225,7 @@
     // The autocommands in readfile() may change the buffer, but only AFTER
     // reading the file.
     set_bufref(&old_curbuf, curbuf);
-    modified_was_set = FALSE;
+    curbuf->b_modified_was_set = FALSE;
 
     // mark cursor position as being invalid
     curwin->w_valid = 0;
@@ -322,7 +322,7 @@
     // the changed flag.  Unless in readonly mode: "ls | gview -".
     // When interrupted and 'cpoptions' contains 'i' set changed flag.
     if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL)
-		|| modified_was_set	// ":set modified" used in autocmd
+		|| curbuf->b_modified_was_set	// autocmd did ":set modified"
 #ifdef FEAT_EVAL
 		|| (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL)
 #endif
@@ -1944,7 +1944,7 @@
 	// ":ball" used in an autocommand.  If there already is a filetype we
 	// might prefer to keep it.
 	if (*curbuf->b_p_ft == NUL)
-	    did_filetype = FALSE;
+	    curbuf->b_did_filetype = FALSE;
 
 	open_buffer(FALSE, NULL, 0);
     }