diff --git a/apps/shark_studio/modules/ckpt_processing.py b/apps/shark_studio/modules/ckpt_processing.py
index b1d75806..9f75c8dd 100644
--- a/apps/shark_studio/modules/ckpt_processing.py
+++ b/apps/shark_studio/modules/ckpt_processing.py
@@ -64,11 +64,14 @@ def preprocessCKPT(custom_weights, precision="fp16", is_inpaint=False):
     return path_to_diffusers
 
 
-def save_irpa(weights_path, prepend_str):
+def save_irpa(weights_path, prepend_str, remove_str=None):
     weights = safetensors.torch.load_file(weights_path)
     archive = ParameterArchiveBuilder()
     for key in weights.keys():
-        new_key = prepend_str + key
+        if remove_str:
+            new_key = key.replace(remove_str, prepend_str)
+        else:
+            new_key = prepend_str + key
         archive.add_tensor(new_key, weights[key])
 
     if "safetensors" in weights_path:
diff --git a/apps/shark_studio/tools/params_prefixer.py b/apps/shark_studio/tools/params_prefixer.py
index 33bcfb89..313621e0 100644
--- a/apps/shark_studio/tools/params_prefixer.py
+++ b/apps/shark_studio/tools/params_prefixer.py
@@ -15,6 +15,12 @@ parser.add_argument(
     default="",
     help="prefix to add to all the keys in the irpa",
 )
+parser.add_argument(
+    "--replace",
+    type=str,
+    default=None,
+    help="prefix to be removed"
+)
 args = parser.parse_args()
-output_file = save_irpa(args.input, args.prefix)
+output_file = save_irpa(args.input, args.prefix, args.replace)
 print("saved irpa to", output_file, "with prefix", args.prefix)