diff --git a/src/_pytest/assertion/rewrite.py b/src/_pytest/assertion/rewrite.py
index 2afe76b82..a79a52157 100644
--- a/src/_pytest/assertion/rewrite.py
+++ b/src/_pytest/assertion/rewrite.py
@@ -135,7 +135,7 @@ class AssertionRewritingHook:
         co = _read_pyc(fn, pyc, state.trace)
         if co is None:
             state.trace("rewriting {!r}".format(fn))
-            source_stat, co = _rewrite_test(fn)
+            source_stat, co = _rewrite_test(fn, self.config)
             if write:
                 self._writing_pyc = True
                 try:
@@ -279,13 +279,13 @@ def _write_pyc(state, co, source_stat, pyc):
     return True
 
 
-def _rewrite_test(fn):
+def _rewrite_test(fn, config):
     """read and rewrite *fn* and return the code object."""
     stat = os.stat(fn)
     with open(fn, "rb") as f:
         source = f.read()
     tree = ast.parse(source, filename=fn)
-    rewrite_asserts(tree, fn)
+    rewrite_asserts(tree, fn, config)
     co = compile(tree, fn, "exec", dont_inherit=True)
     return stat, co
 
@@ -327,9 +327,9 @@ def _read_pyc(source, pyc, trace=lambda x: None):
         return co
 
 
-def rewrite_asserts(mod, module_path=None):
+def rewrite_asserts(mod, module_path=None, config=None):
     """Rewrite the assert statements in mod."""
-    AssertionRewriter(module_path).run(mod)
+    AssertionRewriter(module_path, config).run(mod)
 
 
 def _saferepr(obj):
@@ -523,7 +523,7 @@ class AssertionRewriter(ast.NodeVisitor):
 
     """
 
-    def __init__(self, module_path):
+    def __init__(self, module_path, config):
         super().__init__()
         self.module_path = module_path
         self.config = config
@@ -761,7 +761,7 @@ class AssertionRewriter(ast.NodeVisitor):
             )
             # If any hooks implement assert_pass hook
             hook_impl_test = ast.If(
-                self.helper("_check_if_assertionpass_impl"), [hook_call_pass], []
+                self.helper("_check_if_assertion_pass_impl"), [hook_call_pass], []
             )
             statements_pass = []
             statements_pass.extend(self.expl_stmts)