diff --git a/src/nix-channel/nix-channel.cc b/src/nix-channel/nix-channel.cc
index a6ca6f711..3d708898b 100644
--- a/src/nix-channel/nix-channel.cc
+++ b/src/nix-channel/nix-channel.cc
@@ -166,7 +166,7 @@ static int main_nix_channel(int argc, char ** argv)
 {
     warn(
         "nix-channel is deprecated in favor of flakes in Determinate Nix. \
-For a guide on Nix flakes, see: https://zero-to-nix.com/. \
+For a guide on Nix flakes, see: https://zero-to-nix.com. \
 For details and to offer feedback on the deprecation process, see: https://github.com/DeterminateSystems/nix-src/issues/34.");
 
     {