--- trunk/src/nonbonded/Electrostatic.cpp	2013/08/07 15:24:16	1925
+++ trunk/src/nonbonded/Electrostatic.cpp	2013/08/17 13:03:17	1928
@@ -921,7 +921,7 @@ namespace OpenMD {
           }          
         } else {
           if (a_is_Fluctuating) dUdCa += C_b * pref * v01;
-          if (a_is_Fluctuating) dUdCb += C_a * pref * v01;
+          if (b_is_Fluctuating) dUdCb += C_a * pref * v01;
         }
       }