diff --git a/radio/util/sinus.py b/radio/util/sinus.py
index bea4b3fc0..2e9b0932b 100755
--- a/radio/util/sinus.py
+++ b/radio/util/sinus.py
@@ -12,8 +12,8 @@ min = 0
 
 for i in range(samples):
     sample = 0.0
-    for harmonic, amplitude in enumerate(amplitudes):    
-        sample += math.sin(math.pi*2*i*(harmonic+1)/samples) * amplitude / 2
+    for harmonic, amplitude in enumerate(amplitudes):
+        sample += math.sin(math.pi * 2 * i * (harmonic + 1) / samples) * amplitude / 2
     sample = int(sample)
     if sample > max:
         max = sample
@@ -28,4 +28,3 @@ print('Range is:', min, max)
 
 if max > 32767 or min < -32768:
     print("Invalid range!")
-