diff --git a/pyinfra/server/server.py b/pyinfra/server/server.py
index 4149c21..21781e2 100644
--- a/pyinfra/server/server.py
+++ b/pyinfra/server/server.py
@@ -12,8 +12,7 @@ from pyinfra.server.stream.rest import LazyRestProcessor
 def set_up_processing_server(server_stream_function, buffer_size):
     flat_stream_buffer = FlatStreamBuffer(server_stream_function, buffer_size=buffer_size)
     queued_stream_function = QueuedStreamFunction(flat_stream_buffer)
-    operation2function = {None: queued_stream_function}
-    return __set_up_processing_server(operation2function)
+    return __set_up_processing_server(queued_stream_function)
 
 
 def build_endpoint_suffixes(op: str):
@@ -21,7 +20,7 @@ def build_endpoint_suffixes(op: str):
 
 
 def submit_suffix(op: str):
-    return "submit" if not op else f"{op}_submit"
+    return "submit" if not op else op
 
 
 def pickup_suffix(op: str):