diff --git a/src/main/java/ca/gc/aafc/dina/export/api/generator/ObjectStoreExportGenerator.java b/src/main/java/ca/gc/aafc/dina/export/api/generator/ObjectStoreExportGenerator.java
index 7aa54bc..edfda71 100644
--- a/src/main/java/ca/gc/aafc/dina/export/api/generator/ObjectStoreExportGenerator.java
+++ b/src/main/java/ca/gc/aafc/dina/export/api/generator/ObjectStoreExportGenerator.java
@@ -90,7 +90,7 @@ public CompletableFuture<UUID> export(DataExport dinaExport) throws IOException
 
         ResponseBody body = response.body();
         if (!response.isSuccessful() || body == null) {
-          throw new IllegalStateException("Can't read response body from object-store");
+          throw new IllegalStateException("Can't read response body from object-store. Returned code: " + response.code());
         }
         try (OutputStream outputStream = new FileOutputStream(destinationFile.toFile());
              InputStream inputStream = body.byteStream()) {