diff --git a/src/lint/linter/__tests__/jshint/jshint.lint-test b/src/lint/linter/__tests__/jshint/jshint.lint-test
--- a/src/lint/linter/__tests__/jshint/jshint.lint-test
+++ b/src/lint/linter/__tests__/jshint/jshint.lint-test
@@ -9,4 +9,4 @@
 ~~~~~~~~~~
 warning:3:8
 error:7:1
-error:9:
+error:9:1
diff --git a/src/lint/linter/xhpast/ArcanistXHPASTLinterRule.php b/src/lint/linter/xhpast/ArcanistXHPASTLinterRule.php
--- a/src/lint/linter/xhpast/ArcanistXHPASTLinterRule.php
+++ b/src/lint/linter/xhpast/ArcanistXHPASTLinterRule.php
@@ -213,6 +213,8 @@
     $calls = $root->selectDescendantsOfType('n_FUNCTION_CALL');
     $nodes = array();
 
+    $function_names = array_map('strtolower', $function_names);
+
     foreach ($calls as $call) {
       $node = $call->getChildByIndex(0);
       $name = strtolower($node->getConcreteString());
diff --git a/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php b/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
--- a/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
+++ b/src/lint/linter/xhpast/rules/ArcanistDeprecationXHPASTLinterRule.php
@@ -37,15 +37,17 @@
   }
 
   public function process(XHPASTNode $root) {
-    $map = $this->deprecatedFunctions;
-    $function_calls = $this->getFunctionCalls($root, array_keys($map));
+    $map = new CaseInsensitiveArray($this->deprecatedFunctions);
+
+    $function_calls = $this->getFunctionCalls(
+      $root,
+      array_keys($this->deprecatedFunctions));
 
     foreach ($function_calls as $call) {
       $name = $call
         ->getChildByIndex(0)
         ->getConcreteString();
 
-      $name = strtolower($name);
       if (empty($map[$name])) {
         continue;
       }
diff --git a/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-function.lint-test b/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-function.lint-test
--- a/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-function.lint-test
+++ b/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-function.lint-test
@@ -1,15 +1,17 @@
 <?php
 
-deprecated_function();
+deprecatedfunction();
 modern_function();
+DeprecatedFunction();
 ~~~~~~~~~~
 warning:3:1
+warning:5:1
 ~~~~~~~~~~
 ~~~~~~~~~~
 {
   "config": {
     "xhpast.deprecated.functions": {
-      "deprecated_function": "This function is deprecated."
+      "DeprecatedFunction": "This function is deprecated."
     }
   }
 }
diff --git a/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-static-method.lint-test b/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-static-method.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/xhpast/rules/__tests__/deprecation/deprecated-static-method.lint-test
@@ -0,0 +1,17 @@
+<?php
+
+MyLib::deprecatedmethod();
+MyLib::nonDeprecatedMethod();
+MyLib::deprecatedMethod();
+~~~~~~~~~~
+warning:3:1
+warning:5:1
+~~~~~~~~~~
+~~~~~~~~~~
+{
+  "config": {
+    "xhpast.deprecated.functions": {
+      "MyLib::deprecatedMethod": "This static method is deprecated."
+    }
+  }
+}