diff --git a/lib/Terrain.cpp b/lib/Terrain.cpp
index ea42f3774..fff98de34 100644
--- a/lib/Terrain.cpp
+++ b/lib/Terrain.cpp
@@ -397,30 +397,6 @@ TerrainType::TerrainType(const std::string& _name):
 	transitionRequired(false)
 {
 }
-
-TerrainType& TerrainType::operator=(const TerrainType & other)
-{
-	battleFields = other.battleFields;
-	prohibitTransitions = other.prohibitTransitions;
-	minimapBlocked = other.minimapBlocked;
-	minimapUnblocked = other.minimapUnblocked;
-	name = other.name;
-	musicFilename = other.musicFilename;
-	tilesFilename = other.tilesFilename;
-	terrainText = other.terrainText;
-	typeCode = other.typeCode;
-	terrainViewPatterns = other.terrainViewPatterns;
-	rockTerrain = other.rockTerrain;
-	river = other.river;
-
-	id = other.id;
-	moveCost = other.moveCost;
-	horseSoundId = other.horseSoundId;
-	passabilityType = other.passabilityType;
-	transitionRequired = other.transitionRequired;
-
-	return *this;
-}
 	
 bool TerrainType::operator==(const TerrainType& other)
 {
@@ -474,16 +450,6 @@ RiverType::RiverType(const std::string & fileName, const std::string & code, Riv
 {
 }
 
-RiverType& RiverType::operator=(const RiverType& other)
-{
-	fileName = other.fileName;
-	code = other.code;
-	deltaName = other.deltaName;
-	id = other.id;
-
-	return *this;
-}
-
 RoadType::RoadType(const std::string& fileName, const std::string& code, RoadId id):
 	fileName(fileName),
 	code(code),
@@ -492,14 +458,4 @@ RoadType::RoadType(const std::string& fileName, const std::string& code, RoadId
 {
 }
 
-RoadType& RoadType::operator=(const RoadType& other)
-{
-	fileName = other.fileName;
-	code = other.code;
-	id = other.id;
-	movementCost = other.movementCost;
-
-	return *this;
-}
-
-VCMI_LIB_NAMESPACE_END
\ No newline at end of file
+VCMI_LIB_NAMESPACE_END
diff --git a/lib/Terrain.h b/lib/Terrain.h
index a4aae7b8a..6e23a9ca2 100644
--- a/lib/Terrain.h
+++ b/lib/Terrain.h
@@ -49,8 +49,6 @@ public:
 	bool transitionRequired;
 	
 	TerrainType(const std::string & name = "");
-
-	TerrainType& operator=(const TerrainType & other);
 	
 	bool operator==(const TerrainType & other);
 	bool operator!=(const TerrainType & other);
@@ -99,8 +97,6 @@ public:
 
 	RiverType(const std::string & fileName = "", const std::string & code = "", RiverId id = River::NO_RIVER);
 
-	RiverType& operator=(const RiverType & other);
-
 	template <typename Handler> void serialize(Handler& h, const int version)
 	{
 		h & fileName;
@@ -120,8 +116,6 @@ public:
 
 	RoadType(const std::string & fileName = "", const std::string& code = "", RoadId id = Road::NO_ROAD);
 
-	RoadType& operator=(const RoadType & other);
-
 	template <typename Handler> void serialize(Handler& h, const int version)
 	{
 		h & fileName;