diff --git a/e2e-tests/build.sbt b/e2e-tests/build.sbt
index 9c49ed2919..a322970b81 100644
--- a/e2e-tests/build.sbt
+++ b/e2e-tests/build.sbt
@@ -14,5 +14,6 @@ lazy val root = (project in file("."))
       libraryDependencies ++=
           gatling ++
               Seq("io.gatling" % "gatling-core" % GatlingVersion) ++
-              Seq("io.gatling" % "gatling-app" % GatlingVersion)
+              Seq("io.gatling" % "gatling-app" % GatlingVersion),
+      scalacOptions += "-language:postfixOps"
     ) dependsOn gatlingGitExtension