diff --git a/unpacked/jax/output/SVG/fonts/TeX/fontdata.js b/unpacked/jax/output/SVG/fonts/TeX/fontdata.js
index e0999ad79..a2812c560 100644
--- a/unpacked/jax/output/SVG/fonts/TeX/fontdata.js
+++ b/unpacked/jax/output/SVG/fonts/TeX/fontdata.js
@@ -1565,6 +1565,16 @@
   //  Add some spacing characters (more will come later)
   //
   MathJax.Hub.Insert(SVG.FONTDATA.FONTS['MathJax_Main'],{
+    0x2000: [0,0,500,0,0],             // en quad
+    0x2001: [0,0,1000,0,0],            // em quad
+    0x2002: [0,0,500,0,0],             // en space
+    0x2003: [0,0,1000,0,0],            // em space
+    0x2004: [0,0,333,0,0],             // 3-per-em space
+    0x2005: [0,0,250,0,0],             // 4-per-em space
+    0x2006: [0,0,167,0,0],             // 6-per-em space
+    0x2009: [0,0,167,0,0],             // thin space
+    0x200A: [0,0,83,0,0],              // hair space
+    0x200B: [0,0,0,0,0],               // zero-width space
     0xEEE0: [0,0,-575,0,0,{space:1}],
     0xEEE1: [0,0,-300,0,0,{space:1}],
     0xEEE8: [0,0,25,0,0,{space:1}]