diff --git a/src/darkleaf/di/core.clj b/src/darkleaf/di/core.clj
index cbb1549..678555f 100644
--- a/src/darkleaf/di/core.clj
+++ b/src/darkleaf/di/core.clj
@@ -601,7 +601,8 @@
 
 (defn- check-nil-component! [component var]
   (if (nil? component)
-    (throw (ex-info (str "nil component " var) {}))
+    (throw (ex-info (str "nil component " var)
+                    {:type ::nil-component}))
     component))
 
 (defn- var->0-component [variable]
diff --git a/test/darkleaf/di/component_test.clj b/test/darkleaf/di/component_test.clj
index ad3cb46..367b522 100644
--- a/test/darkleaf/di/component_test.clj
+++ b/test/darkleaf/di/component_test.clj
@@ -5,13 +5,25 @@
   (:import
    (clojure.lang ExceptionInfo)))
 
+(defmacro catch-cause-data [& body]
+  `(try ~@body
+        (catch clojure.lang.ExceptionInfo e#
+          (mapv :data (:via (Throwable->map e#))))))
+
 (defn nil-component
   {::di/kind :component}
   []
   nil)
 
+(defn nil-component-1-arity
+  {::di/kind :component}
+  [_]
+  nil)
+
 (t/deftest nil-component-test
-  (t/is (thrown-with-msg?
-         ExceptionInfo
-         #"\Anil component #'darkleaf.di.component-test/nil-component\z"
-         (di/start `nil-component))))
+  (t/is (= [{:stack [`nil-component ::di/implicit-root]}
+            {:type ::di/nil-component}]
+           (catch-cause-data (di/start `nil-component))))
+  (t/is (= [{:stack [`nil-component-1-arity ::di/implicit-root]}
+            {:type ::di/nil-component}]
+           (catch-cause-data (di/start `nil-component-1-arity)))))