diff --git a/internal/zinc-ivy-integration/src/main/java/sbt/inc/ZincBridgeProvider.java b/internal/zinc-ivy-integration/src/main/java/sbt/inc/ZincBridgeProvider.java
index 97ec691aa..5f715c45a 100644
--- a/internal/zinc-ivy-integration/src/main/java/sbt/inc/ZincBridgeProvider.java
+++ b/internal/zinc-ivy-integration/src/main/java/sbt/inc/ZincBridgeProvider.java
@@ -15,7 +15,7 @@ import xsbti.compile.CompilerBridgeProvider;
 import java.io.File;
 import java.util.concurrent.Callable;
 
-public final class ZincBridgeProvider {
+public interface ZincBridgeProvider {
     /**
      * Returns an ivy resolver to resolve dependencies locally in the default `.ivy2/local`.
      * <p>