diff --git a/client/windows/CTradeWindow.cpp b/client/windows/CTradeWindow.cpp
index 5e1cf6485..41fe856bd 100644
--- a/client/windows/CTradeWindow.cpp
+++ b/client/windows/CTradeWindow.cpp
@@ -1250,7 +1250,7 @@ void CAltarWindow::makeDeal()
 		std::sort(positions.begin(), positions.end(), std::greater<>());
 
 		LOCPLINT->cb->trade(market, mode, positions, {}, {}, hero);
-		arts->artifactsOnAltar.clear();
+		artifactsOfHero->artifactsOnAltar.clear();
 
 		for(auto item : items[0])
 		{
diff --git a/config/objects/generic.json b/config/objects/generic.json
index e6cc57d19..c20e0b137 100644
--- a/config/objects/generic.json
+++ b/config/objects/generic.json
@@ -54,7 +54,7 @@
 					"rarity"	: 100
 				},
 				"modes" : ["resource-resource", "resource-player"],
-				"efficacy" : 5,
+				"efficiency" : 5,
 				"title" : "core.genrltxt.159"
 			}
 		}
@@ -78,7 +78,7 @@
 					"rarity"	: 100
 				},
 				"modes" : ["resource-resource", "resource-player"],
-				"efficacy" : 5,
+				"efficiency" : 5,
 				"title" : "core.genrltxt.159"
 			}
 		}