diff --git a/owlps-positioning/src/stock.cc b/owlps-positioning/src/stock.cc
index 2e8c88b..37944f7 100644
--- a/owlps-positioning/src/stock.cc
+++ b/owlps-positioning/src/stock.cc
@@ -560,7 +560,7 @@ void Stock::regenerate_reference_points()
             /* Compute the SS */
             ref1_ss = ref1_ss * ref1_percent / 100 ;
             ref2_ss = ref2_ss * ref2_percent / 100 ;
-            double rx_ss = (ref1_ss + ref2_ss) / 2 ;
+            double rx_ss = ref1_ss + ref2_ss ;
 
             /* Create the measurement, add it to the list */
             Measurement m(&rx->second) ;