diff --git a/doc/man/s3fs.1 b/doc/man/s3fs.1
index 3f75283..89d81de 100644
--- a/doc/man/s3fs.1
+++ b/doc/man/s3fs.1
@@ -78,7 +78,7 @@ delete local file cache when s3fs starts and exits.
 \fB\-o\fR storage_class (default is standard)
 store object with specified storage class.
 this option replaces the old option use_rrs.
-Possible values: standard, standard_ia, and reduced_redundancy.
+Possible values: standard, standard_ia, onezone_ia and reduced_redundancy.
 .TP
 \fB\-o\fR use_rrs (default is disable)
 use Amazon's Reduced Redundancy Storage.
diff --git a/src/curl.cpp b/src/curl.cpp
index 2bd9f87..c1a80a4 100644
--- a/src/curl.cpp
+++ b/src/curl.cpp
@@ -2816,6 +2816,8 @@ int S3fsCurl::PutHeadRequest(const char* tpath, headers_t& meta, bool is_copy)
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "REDUCED_REDUNDANCY");
   } else if(STANDARD_IA == GetStorageClass()){
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "STANDARD_IA");
+  } else if(ONEZONE_IA == GetStorageClass()){
+    requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "ONEZONE_IA");
   }
   // SSE
   if(!is_copy){
@@ -2945,6 +2947,8 @@ int S3fsCurl::PutRequest(const char* tpath, headers_t& meta, int fd)
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "REDUCED_REDUNDANCY");
   } else if(STANDARD_IA == GetStorageClass()){
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "STANDARD_IA");
+  } else if(ONEZONE_IA == GetStorageClass()){
+    requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "ONEZONE_IA");
   }
   // SSE
   string ssevalue("");
@@ -3212,6 +3216,8 @@ int S3fsCurl::PreMultipartPostRequest(const char* tpath, headers_t& meta, string
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "REDUCED_REDUNDANCY");
   } else if(STANDARD_IA == GetStorageClass()){
     requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "STANDARD_IA");
+  } else if(ONEZONE_IA == GetStorageClass()){
+    requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", "ONEZONE_IA");
   }
   // SSE
   if(!is_copy){
diff --git a/src/curl.h b/src/curl.h
index 829bc40..e18e253 100644
--- a/src/curl.h
+++ b/src/curl.h
@@ -163,6 +163,7 @@ typedef std::list<sseckeymap_t>            sseckeylist_t;
 enum storage_class_t {
   STANDARD,
   STANDARD_IA,
+  ONEZONE_IA,
   REDUCED_REDUNDANCY
 };
 
diff --git a/src/s3fs.cpp b/src/s3fs.cpp
index 7d0ba98..56b3dda 100644
--- a/src/s3fs.cpp
+++ b/src/s3fs.cpp
@@ -4390,6 +4390,8 @@ static int my_fuse_opt_proc(void* data, const char* arg, int key, struct fuse_ar
         S3fsCurl::SetStorageClass(STANDARD);
       }else if(0 == strcmp(storage_class, "standard_ia")){
         S3fsCurl::SetStorageClass(STANDARD_IA);
+      }else if(0 == strcmp(storage_class, "onezone_ia")){
+        S3fsCurl::SetStorageClass(ONEZONE_IA);
       }else if(0 == strcmp(storage_class, "reduced_redundancy")){
         S3fsCurl::SetStorageClass(REDUCED_REDUNDANCY);
       }else{
diff --git a/src/s3fs_util.cpp b/src/s3fs_util.cpp
index 3a998da..8f2a879 100644
--- a/src/s3fs_util.cpp
+++ b/src/s3fs_util.cpp
@@ -1024,7 +1024,7 @@ void show_help (void)
     "\n"
     "   storage_class (default=\"standard\")\n"
     "      - store object with specified storage class.  Possible values:\n"
-    "        standard, standard_ia, and reduced_redundancy.\n"
+    "        standard, standard_ia, onezone_ia and reduced_redundancy.\n"
     "\n"
     "   use_sse (default is disable)\n"
     "      - Specify three type Amazon's Server-Site Encryption: SSE-S3,\n"