diff --git a/preserves.el b/preserves.el
index 8a34b2a..e39462a 100644
--- a/preserves.el
+++ b/preserves.el
@@ -37,7 +37,7 @@
 (modify-syntax-entry ?\r "> b" preserves-mode-syntax-table)
 (modify-syntax-entry ?/ "_ 12b" preserves-mode-syntax-table)
 (mapcar #'(lambda (x) (modify-syntax-entry x "_" preserves-mode-syntax-table))
-        '(?- ?_ ?$ ?? ?! ?* ?+ ?~ ?: ?< ?> ?=))
+        '(?- ?_ ?$ ?? ?! ?* ?+ ?~ ?: ?< ?> ?= ?|))
 (mapcar #'(lambda (x) (modify-syntax-entry x "." preserves-mode-syntax-table))
         '(?.))
 
@@ -52,11 +52,14 @@
                        "+"
                        "-"
                        "/"
+                       "="
                        "<"
                        ">"
                        "<="
                        ">="
-                       "="
+                       "=="
+                       "!="
+                       "|"
                        )
                      'symbols)
          'font-lock-builtin-face)
@@ -73,6 +76,7 @@
                        "import"
                        "let"
                        "namespace"
+                       "operator"
                        "try"
                        "view"
                        "while"