diff --git a/_pytest/cacheprovider.py b/_pytest/cacheprovider.py
index 11023dc7c..5f7b476db 100755
--- a/_pytest/cacheprovider.py
+++ b/_pytest/cacheprovider.py
@@ -11,7 +11,7 @@ import json
 from os.path import sep as _sep, altsep as _altsep
 
 
-class Cache:
+class Cache(object):
     def __init__(self, config):
         self.config = config
         self._cachedir = config.rootdir.join(".cache")
@@ -152,7 +152,7 @@ def pytest_addoption(parser):
              "This may re-order tests and thus lead to "
              "repeated fixture setup/teardown")
     group.addoption(
-        '--cache', action='store_true', dest="showcache",
+        '--show-cache', action='store_true', dest="showcache",
         help="show cache contents, don't perform collection or tests")
     group.addoption(
         '--clearcache', action='store_true', dest="clearcache",
diff --git a/testing/test_cache.py b/testing/test_cache.py
index 142d676a8..c4c2c3e78 100755
--- a/testing/test_cache.py
+++ b/testing/test_cache.py
@@ -67,7 +67,7 @@ def test_cache_reportheader(testdir):
     ])
 
 def test_cache_show(testdir):
-    result = testdir.runpytest("--cache")
+    result = testdir.runpytest("--show-cache")
     assert result.ret == 0
     result.stdout.fnmatch_lines([
         "*cache is empty*"
@@ -82,7 +82,7 @@ def test_cache_show(testdir):
     """)
     result = testdir.runpytest()
     assert result.ret == 0
-    result = testdir.runpytest("--cache")
+    result = testdir.runpytest("--show-cache")
     result.stdout.fnmatch_lines_random([
         "*cachedir:*",
         "-*cache values*-",