diff --git a/src/fileio.c b/src/fileio.c
index 0d4511a..a87b70b 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -317,7 +317,7 @@
     int		using_b_fname;
 #endif
 
-    write_no_eol_lnum = 0;	/* in case it was set by the previous read */
+    curbuf->b_no_eol_lnum = 0;	/* in case it was set by the previous read */
 
     /*
      * If there is no file name yet, use the one for the read file.
@@ -2599,10 +2599,11 @@
 
     /*
      * Trick: We remember if the last line of the read didn't have
-     * an eol for when writing it again.  This is required for
+     * an eol even when 'binary' is off, for when writing it again with
+     * 'binary' on.  This is required for
      * ":autocmd FileReadPost *.gz set bin|'[,']!gunzip" to work.
      */
-    write_no_eol_lnum = read_no_eol_lnum;
+    curbuf->b_no_eol_lnum = read_no_eol_lnum;
 
     /* When reloading a buffer put the cursor at the first line that is
      * different. */
@@ -2650,13 +2651,17 @@
 							    FALSE, NULL, eap);
 	if (msg_scrolled == n)
 	    msg_scroll = m;
-#ifdef FEAT_EVAL
+# ifdef FEAT_EVAL
 	if (aborting())	    /* autocmds may abort script processing */
 	    return FAIL;
-#endif
+# endif
     }
 #endif
 
+    /* Reset now, following writes should not omit the EOL.  Also, the line
+     * number will become invalid because of edits. */
+    curbuf->b_no_eol_lnum = 0;
+
     if (recoverymode && error)
 	return FAIL;
     return OK;
@@ -4560,7 +4565,7 @@
 	if (end == 0
 		|| (lnum == end
 		    && write_bin
-		    && (lnum == write_no_eol_lnum
+		    && (lnum == buf->b_no_eol_lnum
 			|| (lnum == buf->b_ml.ml_line_count && !buf->b_p_eol))))
 	{
 	    ++lnum;			/* written the line, count it */
@@ -5086,8 +5091,6 @@
     {
 	aco_save_T	aco;
 
-	write_no_eol_lnum = 0;	/* in case it was set by the previous read */
-
 	/*
 	 * Apply POST autocommands.
 	 * Careful: The autocommands may call buf_write() recursively!
@@ -7256,8 +7259,8 @@
 write_lnum_adjust(offset)
     linenr_T	offset;
 {
-    if (write_no_eol_lnum != 0)		/* only if there is a missing eol */
-	write_no_eol_lnum += offset;
+    if (curbuf->b_no_eol_lnum != 0)	/* only if there is a missing eol */
+	curbuf->b_no_eol_lnum += offset;
 }
 
 #if defined(TEMPDIRNAMES) || defined(PROTO)
diff --git a/src/globals.h b/src/globals.h
index 84aaa06..3685fc7 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1057,10 +1057,6 @@
 			;
 #endif
 
-EXTERN linenr_T	write_no_eol_lnum INIT(= 0); /* non-zero lnum when last line
-						of next binary write should
-						not have an end-of-line */
-
 #ifdef FEAT_WINDOWS
 EXTERN int	postponed_split INIT(= 0);  /* for CTRL-W CTRL-] command */
 EXTERN int	postponed_split_flags INIT(= 0);  /* args for win_split() */
diff --git a/src/os_unix.c b/src/os_unix.c
index 0234f90..b227c8e 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -4245,7 +4245,7 @@
 				 * should not have one. */
 				if (lnum != curbuf->b_op_end.lnum
 					|| !curbuf->b_p_bin
-					|| (lnum != write_no_eol_lnum
+					|| (lnum != curbuf->b_no_eol_lnum
 					    && (lnum !=
 						    curbuf->b_ml.ml_line_count
 						    || curbuf->b_p_eol)))
@@ -4588,10 +4588,10 @@
 		    {
 			append_ga_line(&ga);
 			/* remember that the NL was missing */
-			write_no_eol_lnum = curwin->w_cursor.lnum;
+			curbuf->b_no_eol_lnum = curwin->w_cursor.lnum;
 		    }
 		    else
-			write_no_eol_lnum = 0;
+			curbuf->b_no_eol_lnum = 0;
 		    ga_clear(&ga);
 		}
 
diff --git a/src/structs.h b/src/structs.h
index aa93aae..afc494e 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1564,6 +1564,9 @@
 
     /* end of buffer options */
 
+    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_eol;	/* last line had eol when it was read */
     int		b_start_ffc;	/* first char of 'ff' when edit started */
 #ifdef FEAT_MBYTE
diff --git a/src/version.c b/src/version.c
index 34ef920..ad439e1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    124,
+/**/
     123,
 /**/
     122,