diff --git a/utils/tuning/libtuning/modules/lsc/rkisp1.py b/utils/tuning/libtuning/modules/lsc/rkisp1.py
index 20406e436a6a..074f3b272dbf 100644
--- a/utils/tuning/libtuning/modules/lsc/rkisp1.py
+++ b/utils/tuning/libtuning/modules/lsc/rkisp1.py
@@ -81,6 +81,7 @@ class LSCRkISP1(LSC):
             for lis in [list_cr, list_cgr, list_cgb, list_cb]:
                 table = np.mean(lis[indices], axis=0)
                 table = output_map_func((1, 3.999), (1024, 4095), table)
+                table = np.clip(table, 1024, 4095)
                 table = np.round(table).astype('int32').tolist()
                 tables.append(table)