diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 3d4b583677053..79752db0a806b 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -151,7 +151,7 @@ object SparkBuild extends PomBuild {
       if (major.toInt >= 1 && minor.toInt >= 8) Seq("-Xdoclint:all", "-Xdoclint:-missing") else Seq.empty
     },
 
-    javacOptions in (Compile, doc) += "-encoding UTF-8"
+    javacOptions in Compile += "-encoding UTF-8"
   )
 
   def enable(settings: Seq[Setting[_]])(projectRef: ProjectRef) = {