diff --git a/lib/HeroBonus.cpp b/lib/HeroBonus.cpp
index 584bc9fd1..8e4ea8e26 100644
--- a/lib/HeroBonus.cpp
+++ b/lib/HeroBonus.cpp
@@ -1708,7 +1708,7 @@ JsonNode Bonus::toJsonNode() const
 	if(turnsRemain != 0)
 		root["turns"].Integer() = turnsRemain;
 	if(source != OTHER)
-		root["source"].String() = vstd::findKey(bonusSourceMap, source);
+		root["sourceType"].String() = vstd::findKey(bonusSourceMap, source);
 	if(sid != 0)
 		root["sourceID"].Integer() = sid;
 	if(val != 0)
diff --git a/lib/JsonNode.cpp b/lib/JsonNode.cpp
index c0335fe53..8f8d04f1d 100644
--- a/lib/JsonNode.cpp
+++ b/lib/JsonNode.cpp
@@ -845,7 +845,7 @@ bool JsonUtils::parseBonus(const JsonNode &ability, Bonus *b)
 		}
 	}
 
-	value = &ability["source"];
+	value = &ability["sourceType"];
 	if (!value->isNull())
 		b->source = static_cast<Bonus::BonusSource>(parseByMap(bonusSourceMap, value, "source type "));