diff --git a/src/lib.zig b/src/lib.zig
index d89f056ee542381bdfa4855e4b409199253b828c..aade79e0c7ea381b8f257d713b3742debf2b7566 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -401,6 +401,14 @@ fn isCodepointAnEntity(cp: u21) ?htmlentities.Entity {
         '+',
         '/',
         '@',
+        ' ',
+        'a'...'z',
+        'A'...'Z',
+        '0'...'9',
+        '_',
+        '=',
+        '-',
+        ';',
         => return null,
         else => {},
     }