diff --git a/releasenotes/notes/unsupported-http-status-code-05af22dbecc517f7.yaml b/releasenotes/notes/unsupported-http-status-code-05af22dbecc517f7.yaml
new file mode 100644
index 00000000..7674ac25
--- /dev/null
+++ b/releasenotes/notes/unsupported-http-status-code-05af22dbecc517f7.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    The HTTP status code for NotSupportedError has been fixed. The generic
+    ``500 Internal Server Error`` status code was previously used, it will now
+    use the ``501 Not Implemented`` status code.
+
diff --git a/sushy_tools/error.py b/sushy_tools/error.py
index 8530308d..ea34a82a 100644
--- a/sushy_tools/error.py
+++ b/sushy_tools/error.py
@@ -29,8 +29,8 @@ class AliasAccessError(FishyError):
 class NotSupportedError(FishyError):
     """Feature not supported by resource driver"""
 
-    def __init__(self, msg='Unsupported'):
-        super().__init__(msg)
+    def __init__(self, msg='Unsupported', code=501):
+        super().__init__(msg, code)
 
 
 class NotFound(FishyError):