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-rw-r--r--src/mapgen_math.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mapgen_math.cpp b/src/mapgen_math.cpp
index aee2b0d2a..62b81c8ef 100644
--- a/src/mapgen_math.cpp
+++ b/src/mapgen_math.cpp
@@ -169,7 +169,7 @@ void MapgenMathParams::writeParams(Settings *settings) {
MapgenMath::MapgenMath(int mapgenid, MapgenParams *params_, EmergeManager *emerge) : MapgenV7(mapgenid, params_, emerge) {
mg_params = (MapgenMathParams *)params_;
- this->flags |= MG_NOLIGHT;
+ this->flags &= ~MG_LIGHT;
Json::Value & params = mg_params->params;
invert = params["invert"].empty() ? 1 : params["invert"].asBool(); //params["invert"].empty()?1:params["invert"].asBool();