diff --git a/src/client/GameSave.cpp b/src/client/GameSave.cpp
index 448d5b991..d4a47ae2c 100644
--- a/src/client/GameSave.cpp
+++ b/src/client/GameSave.cpp
@@ -2568,7 +2568,11 @@ char * GameSave::serialiseOPS(unsigned int & dataLength)
 	bson_append_bool(&b, "paused", paused);
 	bson_append_int(&b, "gravityMode", gravityMode);
 	bson_append_int(&b, "airMode", airMode);
-	bson_append_double(&b, "ambientAirTemp", double(ambientAirTemp));
+	if (fabsf(ambientAirTemp - (R_TEMP + 273.15f)) > 0.0001f)
+	{
+		bson_append_double(&b, "ambientAirTemp", double(ambientAirTemp));
+		RESTRICTVERSION(96, 0);
+	}
 	bson_append_int(&b, "edgeMode", edgeMode);
 
 	if (stkm.hasData())
diff --git a/src/gui/game/GameModel.h b/src/gui/game/GameModel.h
index f54ecec7f..9bef6c496 100644
--- a/src/gui/game/GameModel.h
+++ b/src/gui/game/GameModel.h
@@ -113,7 +113,7 @@ public:
 
 	void SetEdgeMode(int edgeMode);
 	int GetEdgeMode();
-	void SetAmbientAirTemperature(float edgeMode);
+	void SetAmbientAirTemperature(float ambientAirTemp);
 	float GetAmbientAirTemperature();
 	void SetDecoSpace(int decoSpace);
 	int GetDecoSpace();