diff --git a/build.gradle b/build.gradle
index 4d915f8c..f8f60502 100644
--- a/build.gradle
+++ b/build.gradle
@@ -51,7 +51,7 @@ task run (type: JavaExec, dependsOn: classes){
     classpath = sourceSets.main.runtimeClasspath
 }
 
-task generateGemJarRequiresFile {
+task generateGemJarRequiresFile << {
   File jars_file = file('lib/logstash-input-beats_jars.rb')
   jars_file.newWriter().withWriter { w ->
     w << "# AUTOGENERATED BY THE GRADLE SCRIPT. DO NOT EDIT.\n\n"
@@ -63,7 +63,7 @@ task generateGemJarRequiresFile {
   }
 }
 
-task vendor {
+task vendor << {
     String vendorPathPrefix = "vendor/jar-dependencies"
     configurations.runtime.allDependencies.each { dep ->
       File f = configurations.runtime.filter { it.absolutePath.contains("${dep.group}/${dep.name}/${dep.version}") }.singleFile