diff --git a/table.c b/table.c
index 1725d7b..b77f0f8 100644
--- a/table.c
+++ b/table.c
@@ -1690,7 +1690,7 @@ renderTable(struct table *t, int max_width, struct html_feed_environ *h_env)
 {
     int i, j, w, r, h;
     Str renderbuf;
-    short new_tabwidth[MAXCOL];
+    short new_tabwidth[MAXCOL] = { 0 };
 #ifdef MATRIX
     int itr;
     VEC *newwidth;