diff --git a/CHANGELOG.md b/CHANGELOG.md
index 838fe4332..caad86174 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 Changes to Calva.
 
 ## [Unreleased]
+- [Fix: Lexing regex literal tokenisation](https://github.com/BetterThanTomorrow/calva/issues/463)
 
 ## [2.0.60] - 2019-11-11
 - Re-enable default stylings for nREPL status bar items.
diff --git a/src/webview/clojure-lexer.ts b/src/webview/clojure-lexer.ts
index e212a9692..7ce69e414 100644
--- a/src/webview/clojure-lexer.ts
+++ b/src/webview/clojure-lexer.ts
@@ -53,8 +53,8 @@ toplevel.terminal(/:[^()[\]\{\}#,~@'`^\"\s;]*/, (l, m) => ({ type: "kw" }))
 toplevel.terminal(/[^()[\]\{\}#,~@'`^\"\s:;][^()[\]\{\}#,~@'`^\"\s;]*/, (l, m) => ({ type: "id" }))
 
 // complete string on a single line
-toplevel.terminal(/"([^"\\]|\\.)*"/, (l, m) => ({ type: "str" }))
-toplevel.terminal(/"([^"\\]|\\.)*/, (l, m) => ({ type: "str-start" }))
+toplevel.terminal(/#?"([^"\\]|\\.)*"/, (l, m) => ({ type: "str" }))
+toplevel.terminal(/#?"([^"\\]|\\.)*/, (l, m) => ({ type: "str-start" }))
 toplevel.terminal(/./, (l, m) => ({ type: "junk" }))
 
 /** This is the multi-line string grammar. It spits out 'str-end' once it is time to switch back to the 'toplevel' grammar, and 'str-inside' if the string continues. */