1 files changed, 8 insertions, 0 deletions
diff --git a/src/nix-worker/nix-worker.cc b/src/nix-worker/nix-worker.cc
index 59ab487761df..a41fb2e154af 100644
--- a/src/nix-worker/nix-worker.cc
+++ b/src/nix-worker/nix-worker.cc
@@ -520,6 +520,14 @@ static void performOp(unsigned int clientVersion,
         break;
     }
             
+    case wopQueryValidPaths: {
+        startWork();
+        PathSet paths = store->queryValidPaths();
+        stopWork();
+        writeStringSet(paths, to);
+        break;
+    }
+
     default:
         throw Error(format("invalid operation %1%") % op);
     }