diff --git a/src/libcmd/command.cc b/src/libcmd/command.cc
index 85864401c..f167aa757 100644
--- a/src/libcmd/command.cc
+++ b/src/libcmd/command.cc
@@ -143,8 +143,7 @@ MixOperateOnOptions::MixOperateOnOptions()
 {
     addFlag({
         .longName = "derivation",
-        .description =
-            "Operate on the [derivation](@docroot@/glossary.md#gloss-derivation) rather than its outputs.",
+        .description = "Operate on the [derivation](@docroot@/glossary.md#gloss-derivation) rather than its outputs.",
         .category = installablesCategory,
         .handler = {&operateOn, OperateOn::Derivation},
     });