diff --git a/spark/build.gradle b/spark/build.gradle
index a7a76e3555..b47414e379 100644
--- a/spark/build.gradle
+++ b/spark/build.gradle
@@ -14,7 +14,7 @@ repositories {
     mavenCentral()
 }
 
-tasks.register('downloadG4Files', Exec) {
+tasks.register('downloadG4Files') {
     description = 'Download remote .g4 files from GitHub'
 
     // use doLast to wait the completion of command execution