diff --git a/test/loadtest/im_load_tests.jmx b/test/loadtest/im_load_tests.jmx
index 0975d7595..194d3c459 100644
--- a/test/loadtest/im_load_tests.jmx
+++ b/test/loadtest/im_load_tests.jmx
@@ -159,7 +159,18 @@
               <stringProp name="HTTPSampler.connect_timeout"></stringProp>
               <stringProp name="HTTPSampler.response_timeout"></stringProp>
             </HTTPSamplerProxy>
-            <hashTree/>
+            <hashTree>
+              <ResponseAssertion guiclass="AssertionGui" testclass="ResponseAssertion" testname="Response Assertion" enabled="true">
+                <collectionProp name="Asserion.test_strings">
+                  <stringProp name="-1447182354">200|404</stringProp>
+                </collectionProp>
+                <stringProp name="Assertion.custom_message"></stringProp>
+                <stringProp name="Assertion.test_field">Assertion.response_code</stringProp>
+                <boolProp name="Assertion.assume_success">true</boolProp>
+                <intProp name="Assertion.test_type">1</intProp>
+              </ResponseAssertion>
+              <hashTree/>
+            </hashTree>
             <UniformRandomTimer guiclass="UniformRandomTimerGui" testclass="UniformRandomTimer" testname="Uniform Random Timer" enabled="true">
               <stringProp name="ConstantTimer.delay">0</stringProp>
               <stringProp name="RandomTimer.range">0.0</stringProp>