diff --git a/dd-java-agent/instrumentation/servlet/request-3/src/main/java/datadog/trace/instrumentation/servlet3/IastServlet3Advice.java b/dd-java-agent/instrumentation/servlet/request-3/src/main/java/datadog/trace/instrumentation/servlet3/IastServlet3Advice.java
index 4d36a5e7e0d..c789f95ff95 100644
--- a/dd-java-agent/instrumentation/servlet/request-3/src/main/java/datadog/trace/instrumentation/servlet3/IastServlet3Advice.java
+++ b/dd-java-agent/instrumentation/servlet/request-3/src/main/java/datadog/trace/instrumentation/servlet3/IastServlet3Advice.java
@@ -11,6 +11,7 @@
 import javax.servlet.ServletContext;
 import javax.servlet.ServletRequest;
 import javax.servlet.SessionTrackingMode;
+import javax.servlet.http.HttpServletRequest;
 import net.bytebuddy.asm.Advice;
 
 public class IastServlet3Advice {
@@ -23,6 +24,9 @@ public static void onExit(@Advice.Argument(0) ServletRequest request) {
     if (applicationModule == null && sessionRewritingModule == null) {
       return;
     }
+    if (!(request instanceof HttpServletRequest)) {
+      return;
+    }
     final ServletContext context = request.getServletContext();
     if (InstrumentationContext.get(ServletContext.class, String.class).get(context) != null) {
       return;