diff --git a/identify/extensions.py b/identify/extensions.py
index 7460c5b..3165c40 100644
--- a/identify/extensions.py
+++ b/identify/extensions.py
@@ -335,6 +335,7 @@
     '.browserslistrc': {'text', 'browserslistrc'},
     '.clang-format': EXTENSIONS['yaml'],
     '.clang-tidy': EXTENSIONS['yaml'],
+    '.clippy.toml': EXTENSIONS['toml'] | {'clippy'},
     '.codespellrc': EXTENSIONS['ini'] | {'codespellrc'},
     '.coveragerc': EXTENSIONS['ini'] | {'coveragerc'},
     '.cshrc': EXTENSIONS['csh'],
@@ -358,6 +359,7 @@
     '.prettierignore': {'text', 'gitignore', 'prettierignore'},
     '.pypirc': EXTENSIONS['ini'] | {'pypirc'},
     '.rstcheck.cfg': EXTENSIONS['ini'],
+    '.rustfmt.toml': EXTENSIONS['toml'] | {'rustfmt'},
     '.salt-lint': EXTENSIONS['yaml'] | {'salt-lint'},
     '.sqlfluff': EXTENSIONS['ini'],
     '.yamllint': EXTENSIONS['yaml'] | {'yamllint'},
@@ -372,6 +374,8 @@
     'BUILD': EXTENSIONS['bzl'],
     'Cargo.toml': EXTENSIONS['toml'] | {'cargo'},
     'Cargo.lock': EXTENSIONS['toml'] | {'cargo-lock'},
+    'deny.toml': EXTENSIONS['toml'] | {'cargo-deny'},
+    'clippy.toml': EXTENSIONS['toml'] | {'clippy'},
     'CMakeLists.txt': EXTENSIONS['cmake'],
     'CHANGELOG': EXTENSIONS['txt'],
     'config.ru': EXTENSIONS['rb'],
@@ -406,6 +410,7 @@
     'README': EXTENSIONS['txt'],
     'Rakefile': EXTENSIONS['rb'],
     'rebar.config': EXTENSIONS['erl'],
+    'rustfmt.toml': EXTENSIONS['toml'] | {'rustfmt'},
     'setup.cfg': EXTENSIONS['ini'],
     'sys.config': EXTENSIONS['erl'],
     'sys.config.src': EXTENSIONS['erl'],