diff --git a/utils/tuning/libtuning/modules/lsc/rkisp1.py b/utils/tuning/libtuning/modules/lsc/rkisp1.py
index 512233aeae9d..56df23ec7b42 100644
--- a/utils/tuning/libtuning/modules/lsc/rkisp1.py
+++ b/utils/tuning/libtuning/modules/lsc/rkisp1.py
@@ -38,8 +38,12 @@ class LSCRkISP1(LSC):
 
         # \todo Should these ratio against the average of both greens or just
         # each green like we've done here?
-        cr, _ = self._lsc_single_channel(image.channels[lt.Color.R], image, gr)
-        cb, _ = self._lsc_single_channel(image.channels[lt.Color.B], image, gb)
+
+        # The LSC tables in the our rkisp1 algorithm represent gains on the
+        # corresponding channel, not ratios with respect to green, so calculate
+        # them independently
+        cr, _ = self._lsc_single_channel(image.channels[lt.Color.R], image, None)
+        cb, _ = self._lsc_single_channel(image.channels[lt.Color.B], image, None)
 
         return image.color, cr.flatten(), cb.flatten(), cgr.flatten(), cgb.flatten()