diff --git a/doc/site/modules/core/num.markdown b/doc/site/modules/core/num.markdown
index 69e1ff8b..d1cb959c 100644
--- a/doc/site/modules/core/num.markdown
+++ b/doc/site/modules/core/num.markdown
@@ -11,7 +11,7 @@ It is a runtime error if `value` is not a string.
 
 ### Num.**infinity**
 
-The value of &infinity;.
+The value of ∞.
 
 ### Num.**nan**
 
@@ -237,4 +237,4 @@ var range = 1.2...3.4
 System.print(range.min)         //> 1.2
 System.print(range.max)         //> 3.4
 System.print(range.isInclusive) //> false
-</pre>
\ No newline at end of file
+</pre>