diff --git a/pyproject.toml b/pyproject.toml
index 9f37ff2..43f541f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "common"
 description = "Reusable code stubs"
-version = "0.1.7"
+version = "0.1.8"
 requires-python = ">=3.13"
 authors = [
   { name="BreakerBear", email="breakerbear@autistic.men" },
diff --git a/src/common/jsonrpc2/server.py b/src/common/jsonrpc2/server.py
index 9644d65..ac0a27d 100644
--- a/src/common/jsonrpc2/server.py
+++ b/src/common/jsonrpc2/server.py
@@ -68,7 +68,7 @@ class Error(Enum):
     INTERNAL_ERROR = -32603
 
     def __init__(self, *args):
-        super().__init__(args)
+        super().__init__(*args)
         self.data = None
 
     def message(self) -> str:
@@ -140,10 +140,19 @@ async def handler(request: ws.WebSocketRequest):
             inbound = Request.load(message)
             mid = inbound.id
             res = inbound.fulfill()
-        except json.decoder.JSONDecodeError: err = Error.PARSE_ERROR
-        except Request.ParamsError: err = Error.INVALID_PARAMS
-        except TypeError: err = Error.INVALID_REQUEST
-        except KeyError: err = Error.METHOD_NOT_FOUND
+        except json.decoder.JSONDecodeError as e:
+            err = Error.PARSE_ERROR
+            exc = e
+        except Request.ParamsError as e:
+            err = Error.INVALID_PARAMS
+            exc = e
+        except TypeError as e:
+            err = Error.INVALID_REQUEST
+            exc = e
+        except KeyError as e:
+            err = Error.METHOD_NOT_FOUND
+            err.data = str(e)
+            exc = e
         except ws.ConnectionClosed as e:
             logger.critical('Going away', exc_info=e)
             return