diff --git a/comet_pqc/measurements/iv_ramp_bias_elm.py b/comet_pqc/measurements/iv_ramp_bias_elm.py
index 4349df1..d9a1ace 100644
--- a/comet_pqc/measurements/iv_ramp_bias_elm.py
+++ b/comet_pqc/measurements/iv_ramp_bias_elm.py
@@ -480,7 +480,7 @@ def measure(self, hvsrc, vsrc, elm):
                     fmt.write_row(dict(
                         timestamp=dt,
                         voltage=voltage,
-                        elm_current=vsrc_reading,
+                        elm_current=elm_reading,
                         vsrc_current=vsrc_reading,
                         hvsrc_current=hvsrc_reading,
                         bias_voltage=bias_voltage,