diff --git a/vmware-base/src/main/java/com/cloud/hypervisor/vmware/util/VmwareContext.java b/vmware-base/src/main/java/com/cloud/hypervisor/vmware/util/VmwareContext.java
index ec11899ad3b..af44962322e 100644
--- a/vmware-base/src/main/java/com/cloud/hypervisor/vmware/util/VmwareContext.java
+++ b/vmware-base/src/main/java/com/cloud/hypervisor/vmware/util/VmwareContext.java
@@ -427,6 +427,9 @@ public class VmwareContext {
 
         conn.setChunkedStreamingMode(ChunkSize);
         conn.setRequestMethod(httpMethod);
+        if (urlString.endsWith(".iso")) {
+            conn.setRequestProperty("Overwrite", "t");
+        }
         conn.setRequestProperty("Connection", "Keep-Alive");
         String contentType = urlString.endsWith(".iso") ?
                 "application/octet-stream" :