diff --git a/rpitx.py b/rpitx.py
index 4875566f..05738706 100644
--- a/rpitx.py
+++ b/rpitx.py
@@ -212,7 +212,7 @@ if __name__ == "__main__":
 					system("sudo rm /home/pi/CubeSatSim/camera_out.jpg > /dev/null 2>&1") 
 					print ("Sending SSTV image")
 					output(txLed, txLedOn)
-				        system("cat aplay /home/pi/CubeSatSim/camera_out.jpg.wav")
+					system("cat aplay /home/pi/CubeSatSim/camera_out.jpg.wav")
 						
 #					if (debug_mode == 1):
 #						system("cat /home/pi/CubeSatSim/camera_out.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434.9e3")
@@ -228,7 +228,7 @@ if __name__ == "__main__":
 					system("/home/pi/PiSSTVpp/pisstvpp -r 48000 -p s2 /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg") 
 					print ("Sending SSTV image")
 					output(txLed, txLedOn)
-				        system("cat aplay /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav")					
+					system("cat aplay /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav")					
 #					if (debug_mode == 1):
 #						system("cat /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434.9e3")
 #					else: