diff --git a/MTB_UploadNewScale.py b/MTB_UploadNewScale.py
index 4ea6b52..6db32cf 100644
--- a/MTB_UploadNewScale.py
+++ b/MTB_UploadNewScale.py
@@ -69,7 +69,7 @@ def main():
         mtb.SetMeanCount(mean_count)
         for ch_info in hv_channels:
             ch = ch_info["channel"]
-            corr_ppm = ch_info["gain_error"] + 10e6
+            corr_ppm = ch_info["gain_error"] + 9e6
             print(f"Channel {ch}: AdjustScaleI({corr_ppm:+.0f})")
             mtb.SelectChannel(ch)
             mtb.AdjustScaleI(int(round(corr_ppm)))