diff --git a/firmware/tools/fir_lpf.py b/firmware/tools/fir_lpf.py
index 8a78c7ba8..c9ae395b3 100644
--- a/firmware/tools/fir_lpf.py
+++ b/firmware/tools/fir_lpf.py
@@ -6,7 +6,7 @@ ft = 300.0 / 24000.0
 taps = []
 window = []
 
-print("Normalized ft = " + str(ft))
+print(("Normalized ft = " + str(ft)))
 
 for n in range(0, 64):
 	taps.append(math.sin(2 * math.pi * ft * (n - (m / 2.0))) / (math.pi * (n - (m / 2.0))))