1 files changed, 7 insertions, 0 deletions
diff --git a/nix/nix-daemon/nix-daemon.cc b/nix/nix-daemon/nix-daemon.cc
index 88edb0425d..9cfa343d63 100644
--- a/nix/nix-daemon/nix-daemon.cc
+++ b/nix/nix-daemon/nix-daemon.cc
@@ -640,6 +640,13 @@ static void performOp(bool trusted, unsigned int clientVersion,
         break;
     }
 
+    case wopOptimiseStore:
+	startWork();
+	store->optimiseStore();
+	stopWork();
+	writeInt(1, to);
+	break;
+
     default:
         throw Error(format("invalid operation %1%") % op);
     }