diff --git a/RSP_Requirements_Design_Document/index.html b/RSP_Requirements_Design_Document/index.html
index 5c80f33..ad81ec9 100644
--- a/RSP_Requirements_Design_Document/index.html
+++ b/RSP_Requirements_Design_Document/index.html
@@ -663,7 +663,7 @@ <h4>FILTER</h4>
            </code></pre>
          </section>
          <section>  
-         <h4>Aggregations</h4>
+         <h4>Non-blocking Aggregation Operators</h4>
           <p>Some aggregation functions can also be applied directly over the stream without the need for an S2S operation, e.g., 
              MAX, MIN, SUM.
           </p>