diff --git a/src/evalfunc.c b/src/evalfunc.c
index 1307d12..52527bc 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -2550,7 +2550,7 @@
     if (lnum < 0)	/* ignore type error in {lnum} arg */
 	lnum = 0;
     if (lnum != prev_lnum
-	    || changedtick != *curbuf->b_changedtick
+	    || changedtick != CHANGEDTICK(curbuf)
 	    || fnum != curbuf->b_fnum)
     {
 	/* New line, buffer, change: need to get the values. */
@@ -2572,7 +2572,7 @@
 	else
 	    hlID = (hlf_T)0;
 	prev_lnum = lnum;
-	changedtick = *curbuf->b_changedtick;
+	changedtick = CHANGEDTICK(curbuf);
 	fnum = curbuf->b_fnum;
     }
 
@@ -3957,7 +3957,7 @@
     dict_add_nr_str(dict, "loaded", buf->b_ml.ml_mfp != NULL, NULL);
     dict_add_nr_str(dict, "listed", buf->b_p_bl, NULL);
     dict_add_nr_str(dict, "changed", bufIsChanged(buf), NULL);
-    dict_add_nr_str(dict, "changedtick", *buf->b_changedtick, NULL);
+    dict_add_nr_str(dict, "changedtick", CHANGEDTICK(buf), NULL);
     dict_add_nr_str(dict, "hidden",
 		    buf->b_ml.ml_mfp != NULL && buf->b_nwindows == 0,
 		    NULL);