diff --git a/hacking/checks/dictlist.py b/hacking/checks/dictlist.py
new file mode 100644
index 00000000..b9338e5b
--- /dev/null
+++ b/hacking/checks/dictlist.py
@@ -0,0 +1,37 @@
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may
+#  not use this file except in compliance with the License. You may obtain
+#  a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
+
+import tokenize
+
+from hacking import core
+
+
+@core.flake8ext
+def hacking_no_locals(logical_line, physical_line, tokens, noqa):
+    """Do not use locals() for string formatting.
+
+    Okay: 'locals()'
+    Okay: 'locals'
+    Okay: locals()
+    Okay: print(locals())
+    H501: print("%(something)" % locals())
+    Okay: print("%(something)" % locals())  # noqa
+    """
+    if noqa:
+        return
+    for_formatting = False
+    for token_type, text, start, _, _ in tokens:
+        if text == "%" and token_type == tokenize.OP:
+            for_formatting = True
+        if (for_formatting and token_type == tokenize.NAME and text ==
+                "locals" and "locals()" in logical_line):
+            yield (start[1], "H501: Do not use locals() for string formatting")
diff --git a/hacking/core.py b/hacking/core.py
index 3f35b1c9..12582150 100644
--- a/hacking/core.py
+++ b/hacking/core.py
@@ -100,28 +100,6 @@ def import_normalize(line):
         return line
 
 
-@flake8ext
-def hacking_no_locals(logical_line, physical_line, tokens, noqa):
-    """Do not use locals() for string formatting.
-
-    Okay: 'locals()'
-    Okay: 'locals'
-    Okay: locals()
-    Okay: print(locals())
-    H501: print("%(something)" % locals())
-    Okay: print("%(something)" % locals())  # noqa
-    """
-    if noqa:
-        return
-    for_formatting = False
-    for token_type, text, start, _, _ in tokens:
-        if text == "%" and token_type == tokenize.OP:
-            for_formatting = True
-        if (for_formatting and token_type == tokenize.NAME and text ==
-                "locals" and "locals()" in logical_line):
-            yield (start[1], "H501: Do not use locals() for string formatting")
-
-
 FORMAT_RE = re.compile("%(?:"
                        "%|"           # Ignore plain percents
                        "(\(\w+\))?"   # mapping key
diff --git a/setup.cfg b/setup.cfg
index c44bd14d..09c4b3c5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -50,7 +50,7 @@ flake8.extension =
     H403 = hacking.checks.docstrings:hacking_docstring_multiline_end
     H404 = hacking.checks.docstrings:hacking_docstring_multiline_start
     H405 = hacking.checks.docstrings:hacking_docstring_summary
-    H501 = hacking.core:hacking_no_locals
+    H501 = hacking.checks.dictlist:hacking_no_locals
     H700 = hacking.core:hacking_localization_strings
     H801 = hacking.core:OnceGitCheckCommitTitleBug
     H802 = hacking.core:OnceGitCheckCommitTitleLength