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-rw-r--r--src/nix-store/help.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/nix-store/help.txt b/src/nix-store/help.txt
index a3dcdebb6faa..cbded730e866 100644
--- a/src/nix-store/help.txt
+++ b/src/nix-store/help.txt
@@ -11,6 +11,7 @@ Operations:
 
   --successor: register a successor expression (dangerous!)
   --substitute: register a substitute expression (dangerous!)
+  --clear-substitute: clear all substitutes
   --validpath: register path validity (dangerous!)
   --isvalid: check path validity