diff --git a/test/function_invocation.coffee b/test/function_invocation.coffee
index d0e6e85c..75f85904 100644
--- a/test/function_invocation.coffee
+++ b/test/function_invocation.coffee
@@ -506,3 +506,15 @@ test "#1416: don't omit one 'new' when compiling 'new new fn()()'", ->
   eq obj.prop, nonce
   eq obj.a, argNonceA
   eq obj.b, argNonceB
+
+test "#1840: accessing the `prototype` after function invocation should compile", ->
+  doesNotThrow -> CoffeeScript.compile 'fn()::prop'
+  
+  nonce = {}
+  class Test then id: nonce
+
+  dotAccess = -> Test::
+  protoAccess = -> Test
+  
+  eq dotAccess().id, nonce
+  eq protoAccess()::id, nonce