diff --git a/Parser.js b/Parser.js
index fdce97e2e..6e5d3dc30 100644
--- a/Parser.js
+++ b/Parser.js
@@ -294,6 +294,7 @@ var copyFuncs = {
         "\\,",
         "\\:",
         "\\;",
+        "\\enspace",
         "\\qquad",
         "\\quad",
         "\\space"
diff --git a/buildTree.js b/buildTree.js
index e05bd70cb..eeca16ff2 100644
--- a/buildTree.js
+++ b/buildTree.js
@@ -285,6 +285,7 @@ var groupTypes = {
             var spacingClassMap = {
                 "\\qquad": "qquad",
                 "\\quad": "quad",
+                "\\enspace": "enspace",
                 "\\;": "thickspace",
                 "\\:": "mediumspace",
                 "\\,": "thinspace",
diff --git a/static/katex.less b/static/katex.less
index fa2489c4d..2b462b670 100644
--- a/static/katex.less
+++ b/static/katex.less
@@ -248,6 +248,10 @@ big parens
             width: @thickspace;
         }
 
+        &.enspace {
+            width: 0.5em;
+        }
+
         &.quad {
             width: 1em;
         }