diff --git a/sbt-bridge/src/xsbt/CompilerClassLoader.java b/sbt-bridge/src/xsbt/CompilerClassLoader.java
index ec0e32049f97..1ce573148e47 100644
--- a/sbt-bridge/src/xsbt/CompilerClassLoader.java
+++ b/sbt-bridge/src/xsbt/CompilerClassLoader.java
@@ -110,7 +110,7 @@ private static ClassLoader computeFixedLoader(ClassLoader bridgeLoader) {
       Field parentBField = dualLoaderClass.getDeclaredField("parentB");
       parentBField.setAccessible(true);
       URLClassLoader scalaLoader = (URLClassLoader) parentAField.get(dualLoader);
-      URLClassLoader sbtLoader = (URLClassLoader) parentBField.get(dualLoader);
+      ClassLoader sbtLoader = (ClassLoader) parentBField.get(dualLoader);
 
       URL[] bridgeURLs = urlBridgeLoader.getURLs();
       return new URLClassLoader(bridgeURLs,