diff --git a/java/com/google/copybara/testing/RecordsProcessCallDestination.java b/java/com/google/copybara/testing/RecordsProcessCallDestination.java
index 41fae8d3e..9609ffa94 100644
--- a/java/com/google/copybara/testing/RecordsProcessCallDestination.java
+++ b/java/com/google/copybara/testing/RecordsProcessCallDestination.java
@@ -243,7 +243,11 @@ public void copyDestinationFilesToDirectory(Glob glob, Path directory)
 
         @Override
         public boolean exists(String path) {
-          return Files.exists(filePrefix.resolve(path));
+          if (filePrefix != null) {
+            return Files.exists(filePrefix.resolve(path));
+          } else {
+            return Files.exists(Path.of(path));
+          }
         }
       };
     }