diff --git a/rtio/sed/output_network.py b/rtio/sed/output_network.py
index 63632b5..ed7737d 100644
--- a/rtio/sed/output_network.py
+++ b/rtio/sed/output_network.py
@@ -135,7 +135,7 @@ class OutputNetwork(Elaboratable):
                         with m.If(k1 == k2):
                             m.d.comb += channels_unique.eq(0)
                 # If there are no replacements then:
-                # - Channel numbers are unique
+                # - Input channel numbers are unique
                 # - All outputs are valid
                 # - All inputs make it through the sorting network
                 with m.If(~replacement_occurred):