diff --git a/trusty/storage/proxy/proxy.c b/trusty/storage/proxy/proxy.c
index 262003427..ed670b7fe 100644
--- a/trusty/storage/proxy/proxy.c
+++ b/trusty/storage/proxy/proxy.c
@@ -116,10 +116,11 @@ static int drop_privs(void) {
 static int handle_req(struct storage_msg* msg, const void* req, size_t req_len) {
     int rc;
 
-    if ((msg->flags & STORAGE_MSG_FLAG_POST_COMMIT) && (msg->cmd != STORAGE_RPMB_SEND)) {
+    if ((msg->flags & STORAGE_MSG_FLAG_POST_COMMIT) && msg->cmd != STORAGE_RPMB_SEND &&
+        msg->cmd != STORAGE_FILE_WRITE) {
         /*
-         * handling post commit messages on non rpmb commands are not
-         * implemented as there is no use case for this yet.
+         * handling post commit messages on commands other than rpmb and write
+         * operations are not implemented as there is no use case for this yet.
          */
         ALOGE("cmd 0x%x: post commit option is not implemented\n", msg->cmd);
         msg->result = STORAGE_ERR_UNIMPLEMENTED;
diff --git a/trusty/storage/proxy/storage.c b/trusty/storage/proxy/storage.c
index c00c399d9..2fedcce6d 100644
--- a/trusty/storage/proxy/storage.c
+++ b/trusty/storage/proxy/storage.c
@@ -407,6 +407,14 @@ int storage_file_write(struct storage_msg *msg,
         goto err_response;
     }
 
+    if (msg->flags & STORAGE_MSG_FLAG_POST_COMMIT) {
+        rc = storage_sync_checkpoint();
+        if (rc < 0) {
+            msg->result = STORAGE_ERR_GENERIC;
+            goto err_response;
+        }
+    }
+
     msg->result = STORAGE_NO_ERROR;
 
 err_response: