diff --git a/sbt-bridge/src/dotty/tools/xsbt/CompilerBridgeDriver.java b/sbt-bridge/src/dotty/tools/xsbt/CompilerBridgeDriver.java
index 8a7f3ae2d22e..6c622063a141 100644
--- a/sbt-bridge/src/dotty/tools/xsbt/CompilerBridgeDriver.java
+++ b/sbt-bridge/src/dotty/tools/xsbt/CompilerBridgeDriver.java
@@ -29,13 +29,13 @@ public CompilerBridgeDriver(String[] scalacOptions, Output output) {
     super();
     this.scalacOptions = scalacOptions;
 
-    if (!output.getSingleOutput().isPresent())
+    if (!output.getSingleOutputAsPath().isPresent())
       throw new IllegalArgumentException("output should be a SingleOutput, was a " + output.getClass().getName());
 
     this.args = new String[scalacOptions.length + 2];
     System.arraycopy(scalacOptions, 0, args, 0, scalacOptions.length);
     args[scalacOptions.length] = "-d";
-    args[scalacOptions.length + 1] = output.getSingleOutput().get().getAbsolutePath();
+    args[scalacOptions.length + 1] = output.getSingleOutputAsPath().get().toAbsolutePath().toString();
   }
 
   private static final String StopInfoError =
diff --git a/sbt-bridge/src/xsbt/CachedCompilerImpl.java b/sbt-bridge/src/xsbt/CachedCompilerImpl.java
index 8ade3bf4b994..5a88ca4efaf2 100644
--- a/sbt-bridge/src/xsbt/CachedCompilerImpl.java
+++ b/sbt-bridge/src/xsbt/CachedCompilerImpl.java
@@ -26,7 +26,7 @@ public CachedCompilerImpl(String[] args, Output output) {
       throw new IllegalArgumentException("output should be a SingleOutput, was a " + output.getClass().getName());
 
     this.outputArgs =
-      new String[] { "-d", ((SingleOutput) output).getOutputDirectory().getAbsolutePath() };
+      new String[] { "-d", ((SingleOutput) output).getOutputDirectoryAsPath().toAbsolutePath().toString() };
   }
 
   public String[] commandArguments(File[] sources) {