diff --git a/tradecalc.py b/tradecalc.py
index 04b49a68..723c83d0 100644
--- a/tradecalc.py
+++ b/tradecalc.py
@@ -412,6 +412,14 @@ def getBestHops(self, routes, restrictTo=None):
         bestToDest = {}
         safetyMargin = 1.0 - tdenv.margin
         unique = tdenv.unique
+
+        stationsNotYetLoaded = [
+                src.ID for src in [ route.route[-1] for route in routes ] 
+                    if src.tradingWith is None
+        ]
+        if stationsNotYetLoaded:
+            self.tdb.loadStationTrades(stationsNotYetLoaded)
+
         for route in routes:
             tdenv.DEBUG1("Route = {}", route.str())