diff --git a/src/board/system76/addw2/board.mk b/src/board/system76/addw2/board.mk
index ee7c660..52ed04a 100644
--- a/src/board/system76/addw2/board.mk
+++ b/src/board/system76/addw2/board.mk
@@ -25,7 +25,7 @@ CFLAGS+=\
 	-DPOWER_LIMIT_DC=28
 
 # Custom fan curve
-CLFAGS+=-DBOARD_HEATUP=5
+CFLAGS+=-DBOARD_HEATUP=5
 CFLAGS+=-DBOARD_COOLDOWN=20
 CFLAGS+=-DBOARD_FAN_POINTS="\
 	FAN_POINT(60, 40), \
@@ -37,7 +37,7 @@ CFLAGS+=-DBOARD_FAN_POINTS="\
 
 # Enable DGPU support
 CFLAGS+=-DHAVE_DGPU=1
-CLFAGS+=-DBOARD_DGPU_HEATUP=5
+CFLAGS+=-DBOARD_DGPU_HEATUP=5
 CFLAGS+=-DBOARD_DGPU_COOLDOWN=20
 CFLAGS+=-DBOARD_DGPU_FAN_POINTS="\
 	FAN_POINT(60, 40), \
diff --git a/src/board/system76/bonw14/board.mk b/src/board/system76/bonw14/board.mk
index 2aa66a0..c32b5d5 100644
--- a/src/board/system76/bonw14/board.mk
+++ b/src/board/system76/bonw14/board.mk
@@ -25,7 +25,7 @@ CFLAGS+=\
 	-DPOWER_LIMIT_DC=28
 
 # Custom fan curve
-CLFAGS+=-DBOARD_HEATUP=5
+CFLAGS+=-DBOARD_HEATUP=5
 CFLAGS+=-DBOARD_COOLDOWN=20
 CFLAGS+=-DBOARD_FAN_POINTS="\
 	FAN_POINT(60, 40), \
@@ -37,7 +37,7 @@ CFLAGS+=-DBOARD_FAN_POINTS="\
 
 # Enable DGPU support
 CFLAGS+=-DHAVE_DGPU=1
-CLFAGS+=-DBOARD_DGPU_HEATUP=5
+CFLAGS+=-DBOARD_DGPU_HEATUP=5
 CFLAGS+=-DBOARD_DGPU_COOLDOWN=20
 CFLAGS+=-DBOARD_DGPU_FAN_POINTS="\
 	FAN_POINT(60, 40), \
diff --git a/src/board/system76/gaze15/board.mk b/src/board/system76/gaze15/board.mk
index 0b52039..e933542 100644
--- a/src/board/system76/gaze15/board.mk
+++ b/src/board/system76/gaze15/board.mk
@@ -25,7 +25,7 @@ CFLAGS+=\
 	-DPOWER_LIMIT_DC=28
 
 # Custom fan curve
-CLFAGS+=-DBOARD_HEATUP=5
+CFLAGS+=-DBOARD_HEATUP=5
 CFLAGS+=-DBOARD_COOLDOWN=20
 CFLAGS+=-DBOARD_FAN_POINTS="\
 	FAN_POINT(60, 40), \
@@ -37,7 +37,7 @@ CFLAGS+=-DBOARD_FAN_POINTS="\
 
 # Enable DGPU support
 CFLAGS+=-DHAVE_DGPU=1
-CLFAGS+=-DBOARD_DGPU_HEATUP=5
+CFLAGS+=-DBOARD_DGPU_HEATUP=5
 CFLAGS+=-DBOARD_DGPU_COOLDOWN=20
 CFLAGS+=-DBOARD_DGPU_FAN_POINTS="\
 	FAN_POINT(60, 40), \
diff --git a/src/board/system76/oryp6/board.mk b/src/board/system76/oryp6/board.mk
index 4e00af8..0480570 100644
--- a/src/board/system76/oryp6/board.mk
+++ b/src/board/system76/oryp6/board.mk
@@ -25,7 +25,7 @@ CFLAGS+=\
 	-DPOWER_LIMIT_DC=28
 
 # Custom fan curve
-CLFAGS+=-DBOARD_HEATUP=5
+CFLAGS+=-DBOARD_HEATUP=5
 CFLAGS+=-DBOARD_COOLDOWN=20
 CFLAGS+=-DBOARD_FAN_POINTS="\
 	FAN_POINT(60, 40), \
@@ -37,7 +37,7 @@ CFLAGS+=-DBOARD_FAN_POINTS="\
 
 # Enable DGPU support
 CFLAGS+=-DHAVE_DGPU=1
-CLFAGS+=-DBOARD_DGPU_HEATUP=5
+CFLAGS+=-DBOARD_DGPU_HEATUP=5
 CFLAGS+=-DBOARD_DGPU_COOLDOWN=20
 CFLAGS+=-DBOARD_DGPU_FAN_POINTS="\
 	FAN_POINT(60, 40), \