diff --git a/src/main/scala/leon/plugin/ExtractorPhase.scala b/src/main/scala/leon/plugin/ExtractorPhase.scala
index ef94d03e53d357b4837173ff49cdf2d082fc3d97..fdc271d53cc641d587dde3fbef7b1520579f28e4 100644
--- a/src/main/scala/leon/plugin/ExtractorPhase.scala
+++ b/src/main/scala/leon/plugin/ExtractorPhase.scala
@@ -12,6 +12,8 @@ object ExtractionPhase extends LeonPhase[List[String], Program] {
   def run(ctx: LeonContext)(args: List[String]): Program = {
 
     val settings = new NSCSettings
+    settings.usejavacp.value = true
+
     val compilerOpts = args.filterNot(_.startsWith("--"))
 
     val command = new CompilerCommand(compilerOpts, settings) {