diff --git a/src/PendingObjects/TestCall.php b/src/PendingObjects/TestCall.php
index 4ad60bde..81349be1 100644
--- a/src/PendingObjects/TestCall.php
+++ b/src/PendingObjects/TestCall.php
@@ -59,14 +59,14 @@ final class TestCall
     /**
      * Asserts that the test throws the given `$exceptionClass` when called.
      */
-    public function throws(string $exceptionClass, string $exceptionMessage = null): TestCall
+    public function throws(string $exception, string $exceptionMessage = null): TestCall
     {
-        if (class_exists($exceptionClass)) {
+        if (class_exists($exception)) {
             $this->testCaseFactory
                 ->proxies
-                ->add(Backtrace::file(), Backtrace::line(), 'expectException', [$exceptionClass]);
+                ->add(Backtrace::file(), Backtrace::line(), 'expectException', [$exception]);
         } else {
-            $exceptionMessage = $exceptionClass;
+            $exceptionMessage = $exception;
         }
 
         if (is_string($exceptionMessage)) {