diff --git a/src/board/system76/lemp11/board.mk b/src/board/system76/lemp11/board.mk
index eed2be6bd..07fb54ac6 100644
--- a/src/board/system76/lemp11/board.mk
+++ b/src/board/system76/lemp11/board.mk
@@ -28,5 +28,15 @@ CFLAGS+=\
 	-DCHARGER_CHARGE_VOLTAGE=8800 \
 	-DCHARGER_INPUT_CURRENT=0x300
 
+# Custom fan curve
+CFLAGS+=-DBOARD_HEATUP=5
+CFLAGS+=-DBOARD_COOLDOWN=20
+CFLAGS+=-DBOARD_FAN_POINTS="\
+	FAN_POINT(45, 25), \
+    FAN_POINT(50, 30), \
+    FAN_POINT(55, 30), \
+    FAN_POINT(80, 80) \
+"
+
 # Add system76 common code
 include src/board/system76/common/common.mk