diff --git a/script/RFscan/phase_scan_caqtdm.py b/script/RFscan/phase_scan_caqtdm.py
index 5378a2a..94fbffd 100644
--- a/script/RFscan/phase_scan_caqtdm.py
+++ b/script/RFscan/phase_scan_caqtdm.py
@@ -48,7 +48,7 @@ try:
     xb = create_averager(x, nb, 0.100)
     r = lscan(phase, xb, start, stop, step, latency=lat, after_read = after)
     rf_phase = r.getPositions(0)
-    energy   = [val.mean/1000.0/disp*energy0 for val in r.getReadable(1)]
+    energy   = [val.mean/1000.0/disp*energy0 for val in r.getReadable(0)]
     caput(station + "-RSYS:GET-ENERGY-ARRAY", to_array(energy,  'd'))
     caput(station + "-RSYS:GET-PHASE-ARRAY",  to_array(rf_phase,'d'))
     phase_fit_max = None