diff --git a/src/charset.c b/src/charset.c
index 5b0e71c..ef162e4 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -1255,7 +1255,10 @@
 
     vcol = 0;
     ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
-    posptr = ptr + pos->col;
+    if (pos->col == MAXCOL)
+	posptr = NULL;  /* continue until the NUL */
+    else
+	posptr = ptr + pos->col;
 
     /*
      * This function is used very often, do some speed optimizations.
@@ -1313,7 +1316,7 @@
 		    incr = CHARSIZE(c);
 	    }
 
-	    if (ptr >= posptr)	/* character at pos->col */
+	    if (posptr != NULL && ptr >= posptr) /* character at pos->col */
 		break;
 
 	    vcol += incr;
@@ -1334,7 +1337,7 @@
 		break;
 	    }
 
-	    if (ptr >= posptr)	/* character at pos->col */
+	    if (posptr != NULL && ptr >= posptr) /* character at pos->col */
 		break;
 
 	    vcol += incr;
diff --git a/src/memline.c b/src/memline.c
index 29a6e5c..102b61e 100644
--- a/src/memline.c
+++ b/src/memline.c
@@ -2113,12 +2113,12 @@
     if (buf->b_ml.ml_mfp == NULL)	/* there are no lines */
 	return (char_u *)"";
 
-/*
- * See if it is the same line as requested last time.
- * Otherwise may need to flush last used line.
- * Don't use the last used line when 'swapfile' is reset, need to load all
- * blocks.
- */
+    /*
+     * See if it is the same line as requested last time.
+     * Otherwise may need to flush last used line.
+     * Don't use the last used line when 'swapfile' is reset, need to load all
+     * blocks.
+     */
     if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release)
     {
 	ml_flush_line(buf);
diff --git a/src/version.c b/src/version.c
index 18f3ba5..a635aad 100644
--- a/src/version.c
+++ b/src/version.c
@@ -682,6 +682,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    391,
+/**/
     390,
 /**/
     389,