diff --git a/src/__tests__/whitespace.test.js b/src/__tests__/whitespace.test.js
index d2b41a08..61f98390 100644
--- a/src/__tests__/whitespace.test.js
+++ b/src/__tests__/whitespace.test.js
@@ -97,10 +97,15 @@ const examples = [
     `
 ]
 
+const extendedExamples = [
+  ...examples,
+  ...examples.map((example: string): string => example.replace('//', '#'))
+]
+
 describe('whitespace tests', () => {
-  examples.forEach((example: string): void =>
+  extendedExamples.forEach((example: string) => {
     it(`parses '${example.slice(0, 25)}'`, () => {
       parse(example)
     })
-  )
+  })
 })
diff --git a/src/parsers/crap.js b/src/parsers/crap.js
index 379fffdf..6dee37f7 100644
--- a/src/parsers/crap.js
+++ b/src/parsers/crap.js
@@ -3,7 +3,10 @@
 import P from 'parsimmon'
 
 const NotNewline = P.regexp(/[^\n]*/)
-const Comment = NotNewline.wrap(P.string('//'), P.string('\n'))
+const Comment = NotNewline.wrap(
+  P.alt(P.string('//'), P.string('#')),
+  P.string('\n')
+)
 const Whitespace = P.regexp(/[ \n]*/)
 
 export default Comment.sepBy(Whitespace).trim(Whitespace)