diff --git a/plugins/repository-azure/src/test/java/org/opensearch/repositories/azure/AzureBlobContainerRetriesTests.java b/plugins/repository-azure/src/test/java/org/opensearch/repositories/azure/AzureBlobContainerRetriesTests.java
index c973cb325b658..e8417f9ceaf2c 100644
--- a/plugins/repository-azure/src/test/java/org/opensearch/repositories/azure/AzureBlobContainerRetriesTests.java
+++ b/plugins/repository-azure/src/test/java/org/opensearch/repositories/azure/AzureBlobContainerRetriesTests.java
@@ -231,8 +231,7 @@ public void testReadBlobWithRetries() throws Exception {
                         exchange.getResponseHeaders().add("Content-Type", "application/octet-stream");
                         exchange.getResponseHeaders().add("Content-Length", String.valueOf(length));
                         exchange.getResponseHeaders().add("x-ms-blob-type", "blockblob");
-                        exchange.getResponseHeaders()
-                            .add("Content-Range", String.format("bytes %d-%d/%d", rangeStart, bytes.length, bytes.length));
+                        exchange.getResponseHeaders().add("Content-Range", "bytes " + rangeStart + "-" + bytes.length + "/" + bytes.length);
                         exchange.sendResponseHeaders(RestStatus.OK.getStatus(), length);
                         exchange.getResponseBody().write(bytes, rangeStart, length);
                         return;
@@ -282,7 +281,7 @@ public void testReadRangeBlobWithRetries() throws Exception {
                         exchange.getResponseHeaders().add("Content-Type", "application/octet-stream");
                         exchange.getResponseHeaders().add("Content-Length", String.valueOf(length));
                         exchange.getResponseHeaders()
-                            .add("Content-Range", String.format("bytes %d-%d/%d", rangeStart, rangeEnd.get(), bytes.length));
+                            .add("Content-Range", "bytes " + rangeStart + "-" + rangeEnd.get() + "/" + bytes.length);
                         exchange.getResponseHeaders().add("x-ms-blob-type", "blockblob");
                         exchange.sendResponseHeaders(RestStatus.OK.getStatus(), length);
                         exchange.getResponseBody().write(bytes, rangeStart, length);
diff --git a/test/fixtures/azure-fixture/src/main/java/fixture/azure/AzureHttpHandler.java b/test/fixtures/azure-fixture/src/main/java/fixture/azure/AzureHttpHandler.java
index 8389bd839d165..4879425b7bcd6 100644
--- a/test/fixtures/azure-fixture/src/main/java/fixture/azure/AzureHttpHandler.java
+++ b/test/fixtures/azure-fixture/src/main/java/fixture/azure/AzureHttpHandler.java
@@ -157,7 +157,9 @@ public void handle(final HttpExchange exchange) throws IOException {
                 exchange.getResponseHeaders().add("Content-Length", String.valueOf(length));
                 exchange.getResponseHeaders().add("x-ms-blob-type", "blockblob");
                 exchange.getResponseHeaders().add("x-ms-request-server-encrypted", "false");
-                exchange.getResponseHeaders().add("Content-Range", String.format("bytes %d-%d/%d", start, Math.min(end, length), length));
+                exchange.getResponseHeaders()
+                    .add("Content-Range", "bytes " + start + "-" + Math.min(end, length) + "/" + blob.length());
+
                 exchange.sendResponseHeaders(RestStatus.OK.getStatus(), length);
                 exchange.getResponseBody().write(blob.toBytesRef().bytes, start, length);