diff --git a/README.md b/README.md
index b0d7923..7a1cb67 100644
--- a/README.md
+++ b/README.md
@@ -21,9 +21,9 @@ then to run:
 
     # vigil <directory_path>
 
-### Tools (48 in total)
+### Tools
 
-Extensions | Tools
+Extensions (42) | Tools (48)
 ---------- | -----
 .* | [contents](http://pygments.org/) • metadata • [git_blame](https://git-scm.com/docs/git-blame) • [git_log](https://git-scm.com/docs/git-log)
 .py | [python_syntax](https://en.wikipedia.org/wiki/Python_syntax_and_semantics) • [python_unittests](https://docs.python.org/3/library/unittest.html) • [pydoc](https://docs.python.org/3/library/pydoc.html) • [mypy](http://www.mypy-lang.org/) • [python_coverage](http://nedbatchelder.com/code/coverage/) • [pycodestyle](https://pypi.python.org/pypi/pycodestyle) • [pydocstyle](http://pydocstyle.readthedocs.org/) • [pyflakes](https://launchpad.net/pyflakes) • [pylint](http://www.pylint.org/) • [python_gut](https://github.com/ahamilton/vigil/blob/master/gut.py) • [python_modulefinder](https://docs.python.org/3/library/modulefinder.html) • [dis](https://docs.python.org/3/library/dis.html) • [python_mccabe](https://github.com/flintwork/mccabe) • [bandit](https://wiki.openstack.org/wiki/Security/Projects/Bandit)
diff --git a/make-readme.py b/make-readme.py
index 30e8110..5b528b5 100755
--- a/make-readme.py
+++ b/make-readme.py
@@ -16,9 +16,11 @@ def tool_markup(tool):
 all_tools = ([(["*"], tools.generic_tools() +
                [tools.git_blame, tools.git_log])] +
              tools.TOOLS_FOR_EXTENSIONS)
-unique_tools = set()
+tool_set = set()
+extension_set = set()
 for extensions, tools_ in all_tools:
-    unique_tools.update(tools_)
+    tool_set.update(tools_)
+    extension_set.update(extensions)
 print(f"""\
 # Vigil Code Monitor
 
@@ -43,9 +45,9 @@ then to run:
 
     # vigil <directory_path>
 
-### Tools ({len(unique_tools)} in total)
+### Tools
 
-Extensions | Tools
+Extensions ({len(extension_set)}) | Tools ({len(tool_set)})
 ---------- | -----""")
 for extensions, tools_ in all_tools:
     print("%s | %s" % (" ".join("." + extension for extension in extensions),