diff --git a/src/vim.h b/src/vim.h
index 8779b4d..88ca9a1 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -588,6 +588,7 @@
 # define OK			1
 #endif
 #define FAIL			0
+#define NOTDONE			2   /* not OK or FAIL but skipped */
 
 /* flags for b_flags */
 #define BF_RECOVERED	0x01	/* buffer has been recovered */