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-rw-r--r--src/nix-env/help.txt5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt
index cebffc99daa7..d940bd209d60 100644
--- a/src/nix-env/help.txt
+++ b/src/nix-env/help.txt
@@ -4,8 +4,9 @@ nix-env [OPTIONS...] [ARGUMENTS...]
 
 Operations:
 
-  --install / -i FILE: add a derivation to the user environment
-  --uninstall / -e: remove a derivation to the user environment
+  --install / -i FILE: add derivations to the user environment
+  --uninstall / -e: remove derivations from the user environment
+  --upgrade / -u FILE: upgrade derivation in the user environment
   --query / -q: perform a query on an environment or Nix expression
 
 The previous operations take a list of derivation names.  The special