diff --git a/capsulflask/virt_model.py b/capsulflask/virt_model.py
index 2bf8d9a..8ff74cc 100644
--- a/capsulflask/virt_model.py
+++ b/capsulflask/virt_model.py
@@ -111,10 +111,10 @@ class ShellScriptVirtualization(VirtualizationInterface):
   def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_public_keys: list):
     validate_capsul_id(id)
 
-    if not re.match(r"^[a-zA-Z0-9_.-]+$", template_image_file_name):
-      raise ValueError(f"template_image_file_name \"{template_image_file_name}\" must match \"^[a-zA-Z0-9_.-]+$\"")
+    if not re.match(r"^[a-zA-Z0-9/_.-]+$", template_image_file_name):
+      raise ValueError(f"template_image_file_name \"{template_image_file_name}\" must match \"^[a-zA-Z0-9/_.-]+$\"")
 
-    for ssh_public_key in ssh_public_keys: 
+    for ssh_public_key in ssh_public_keys:
       if not re.match(r"^(ssh|ecdsa)-[0-9A-Za-z+/_=@. -]+$", ssh_public_key):
         raise ValueError(f"ssh_public_key \"{ssh_public_key}\" must match \"^(ssh|ecdsa)-[0-9A-Za-z+/_=@. -]+$\"")