diff --git a/src/search.cpp b/src/search.cpp
index d9543899..047a0892 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1713,4 +1713,10 @@ void Tablebases::rank_root_moves(Position& pos, Search::RootMoves& rootMoves) {
         if (dtz_available || rootMoves[0].tbScore <= VALUE_DRAW)
             Cardinality = 0;
     }
+    else
+    {
+        // Clean up if root_probe() and root_probe_wdl() have failed
+        for (auto& m : rootMoves)
+            m.tbRank = 0;
+    }
 }