diff --git a/src/Niv/GitHub/Cmd.hs b/src/Niv/GitHub/Cmd.hs
index 7dfde16..e26dfda 100644
--- a/src/Niv/GitHub/Cmd.hs
+++ b/src/Niv/GitHub/Cmd.hs
@@ -184,4 +184,4 @@ ticket:
 
 Thanks! I'll buy you a beer.
 |]
-      <> T.unlines ["command: ", "nix-prefetch-url" <> T.unwords args, "stdout: ", sout, "stderr: ", serr]
+      <> T.unlines ["command: ", T.unwords ("nix-prefetch-url" : args), "stdout: ", sout, "stderr: ", serr]