diff --git a/scripts/rfi-rotator b/scripts/rfi-rotator
index d2f320e..09c463f 100755
--- a/scripts/rfi-rotator
+++ b/scripts/rfi-rotator
@@ -21,6 +21,8 @@ source env/bin/activate
 
 GAIN=`grep "self.RTL820T.set_gain(" top_block.py | cut -f 2 -d "(" | cut -f 1 -d ","`
 
+rm -f rfi_plot-01-1-45.png rfi_plot-02-90-45.png rfi_plot-03-180-45.png rfi_plot-04-270-45.png rfi_plots.png
+
 spacecruft-greenctld-cmd "P 1 45"
 sleep 84
 PYTHONPATH=/usr/lib/python3/dist-packages:/usr/lib/python3/site-packages:$PYTHONPATH python CygnusRFI.py -b 2400000 -c 2048 -t 0.5 -d 5 -f 400000000 -F 430000000