diff --git a/QuickCheck.cabal b/QuickCheck.cabal
--- a/QuickCheck.cabal
+++ b/QuickCheck.cabal
@@ -1,5 +1,5 @@
 Name: QuickCheck
-Version: 2.7.4
+Version: 2.7.5
 Cabal-Version: >= 1.8
 Build-type: Simple
 License: BSD3
@@ -34,7 +34,7 @@
 source-repository this
   type:     git
   location: https://github.com/nick8325/quickcheck
-  tag:      2.7.4
+  tag:      2.7.5
 
 flag base3
   Description: Choose the new smaller, split-up base package.
@@ -141,6 +141,6 @@
     main-is: Heap.hs
     build-depends:
       base,
-      QuickCheck == 2.7.4,
+      QuickCheck == 2.7.5,
       template-haskell >= 2.4,
       test-framework >= 0.4 && < 0.9
diff --git a/Test/QuickCheck/All.hs b/Test/QuickCheck/All.hs
--- a/Test/QuickCheck/All.hs
+++ b/Test/QuickCheck/All.hs
@@ -106,7 +106,7 @@
   Loc { loc_filename = filename } <- location
   when (filename == "<interactive>") $ error "don't run this interactively"
   ls <- runIO (fmap lines (readUTF8File filename))
-  let prefixes = map (takeWhile (\c -> isAlphaNum c || c == '_') . dropWhile (\c -> isSpace c || c == '>')) ls
+  let prefixes = map (takeWhile (\c -> isAlphaNum c || c == '_' || c == '\'') . dropWhile (\c -> isSpace c || c == '>')) ls
       idents = nubBy (\x y -> snd x == snd y) (filter (("prop_" `isPrefixOf`) . snd) (zip [1..] prefixes))
 #if __GLASGOW_HASKELL__ > 705
       warning x = reportWarning ("Name " ++ x ++ " found in source file but was not in scope")
diff --git a/examples/Heap.hs b/examples/Heap.hs
--- a/examples/Heap.hs
+++ b/examples/Heap.hs
@@ -146,9 +146,7 @@
 -- main
 
 return []
--- quickCheckAll reads this file and treats it as UTF-8
--- Here is a bait to test: Привет!
-main = $(quickCheckAll)
+main = $quickCheckAll
 
 --------------------------------------------------------------------------
 -- the end.