diff --git a/contrib/bsddialog/lib/lib_util.c b/contrib/bsddialog/lib/lib_util.c
--- a/contrib/bsddialog/lib/lib_util.c
+++ b/contrib/bsddialog/lib/lib_util.c
@@ -443,9 +443,10 @@
 			continue;
 		}
 
-		if (nword + tablen >= maxwords) {
+		if (nword + tablen + 1 >= maxwords) {
 			maxwords += 1024;
-			if (realloc(words, maxwords * sizeof(int)) == NULL)
+			words = realloc(words, maxwords * sizeof(int));
+			if (words == NULL)
 				RETURN_ERROR("Cannot realloc memory for text "
 				    "autosize");
 		}
@@ -968,4 +969,4 @@
 		*conf->get_height = h;
 	if (conf->get_width != NULL)
 		*conf->get_width = w;
-}
\ No newline at end of file
+}