diff --git a/script/Bpm6ParallelScan.py b/script/Bpm6ParallelScan.py
index 16ef8af..cf80db3 100644
--- a/script/Bpm6ParallelScan.py
+++ b/script/Bpm6ParallelScan.py
@@ -64,7 +64,7 @@ sensors = sensors + [pico_bpm6_fft_sumal_f_absval, pico_bpm6_fft_sumal_f_real, p
 setup_plotting(line_plots = sensors, plot_list =sensors )
 
 
-caput ("X12SA-OP-BPM6:TS:TSAcquire", 1)
+caput ("X12SA-OP-BPM6:TS:TSAcquire", "1")
 for sensor in sensors: sensor.setMonitored(True)
 caput ("X12SA-ES1-TTL:OUT_02", "HIGH")