diff --git a/src/PendingCalls/TestCall.php b/src/PendingCalls/TestCall.php
index 79885fbf..a4c45a7b 100644
--- a/src/PendingCalls/TestCall.php
+++ b/src/PendingCalls/TestCall.php
@@ -227,7 +227,7 @@ final class TestCall
     public function covers(string ...$classesOrFunctions): self
     {
         foreach ($classesOrFunctions as $classOrFunction) {
-            $isClass = class_exists($classOrFunction);
+            $isClass = class_exists($classOrFunction) || trait_exists($classOrFunction);
             $isMethod = function_exists($classOrFunction);
 
             if (! $isClass && ! $isMethod) {