diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index f3db20e..9123959 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,2 +1,2 @@
 [Hook Scripts]
-checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}
+checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --config_xml tools/checkstyle.xml --sha ${PREUPLOAD_COMMIT}
diff --git a/tools/checkstyle.xml b/tools/checkstyle.xml
new file mode 100644
index 0000000..0f4163d
--- /dev/null
+++ b/tools/checkstyle.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd" [
+  <!ENTITY defaultCopyrightCheck SYSTEM "../../../../prebuilts/checkstyle/default-copyright-check.xml">
+  <!ENTITY defaultJavadocChecks SYSTEM "../../../../prebuilts/checkstyle/default-javadoc-checks.xml">
+  <!ENTITY defaultTreewalkerChecks SYSTEM "../../../../prebuilts/checkstyle/default-treewalker-checks.xml">
+  <!ENTITY defaultModuleChecks SYSTEM "../../../../prebuilts/checkstyle/default-module-checks.xml">
+]>
+
+<module name="Checker">
+  &defaultModuleChecks;
+  &defaultCopyrightCheck;
+  <module name="TreeWalker">
+    &defaultJavadocChecks;
+    &defaultTreewalkerChecks;
+  </module>
+
+  <module name="SuppressionFilter">
+    <property name="file" value="tools/checkstyle_suppression.xml" />
+  </module>
+</module>
diff --git a/tools/checkstyle_suppression.xml b/tools/checkstyle_suppression.xml
new file mode 100644
index 0000000..799e750
--- /dev/null
+++ b/tools/checkstyle_suppression.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE suppressions PUBLIC "-//Puppy Crawl//DTD Suppressions 1.1//EN" "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
+<suppressions>
+
+    <!-- Robolectric uses magic method names like `__constructor__` -->
+    <suppress files="/robolectric_tests" checks="MethodName|JavadocType|JavadocMethod" />
+
+</suppressions>
diff --git a/print_db.py b/tools/print_db.py
similarity index 100%
rename from print_db.py
rename to tools/print_db.py