diff --git a/src/structs.h b/src/structs.h
index 02c9c2a..dfcdcfb 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -3150,6 +3150,7 @@
     linenr_T	b_no_eol_lnum;	// non-zero lnum when last line of next binary
 				// write should not have an end-of-line
 
+    int		b_start_eof;	// last line had eof (CTRL-Z) when it was read
     int		b_start_eol;	// last line had eol when it was read
     int		b_start_ffc;	// first char of 'ff' when edit started
     char_u	*b_start_fenc;	// 'fileencoding' when edit started or NULL