diff --git a/shared/src/test/scala/squants/QuantitySpec.scala b/shared/src/test/scala/squants/QuantitySpec.scala
index 8a9738ce..03f752e8 100644
--- a/shared/src/test/scala/squants/QuantitySpec.scala
+++ b/shared/src/test/scala/squants/QuantitySpec.scala
@@ -702,4 +702,8 @@ class QuantitySpec extends FlatSpec with Matchers with CustomMatchers with TryVa
     timeInMinutes.hashCode() shouldBe timeInSeconds.hashCode()
 
   }
+
+  it should "provide implicit instance for Dimension" {
+    implicitly[Dimension[Thingee]] should be(Thingee)
+  }
 }