diff --git a/unpacked/jax/output/SVG/autoload/mtable.js b/unpacked/jax/output/SVG/autoload/mtable.js
index 4f85381db..0966fa121 100644
--- a/unpacked/jax/output/SVG/autoload/mtable.js
+++ b/unpacked/jax/output/SVG/autoload/mtable.js
@@ -205,9 +205,9 @@ MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
 
         //  Get total width minus column spacing
         WW = SVG.length2em(values.width,mu);
-        for (i = 0, m = Math.min(J+1,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
+        for (i = 0, m = Math.min(J,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
         //  Determine individual column widths
-        WW /= J+1;
+        WW /= J;
         for (i = 0, m = Math.min(J+1,CWIDTH.length); i < m; i++) {W[i] = WW}
       } else {
         //
@@ -227,7 +227,7 @@ MathJax.Hub.Register.StartupHook("SVG Jax Ready",function () {
           if (WP > .98) {Wf = Wp/(Wt+Wp); WW = Wt + Wp} else {WW = Wt / (1-WP)}
         } else {
           WW = SVG.length2em(values.width,mu);
-          for (i = 0, m = Math.min(J+1,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
+          for (i = 0, m = Math.min(J,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
         }
         //  Determine the relative column widths
         for (i = 0, m = P.length; i < m; i++) {