Minor bug fix

src/mw_addslave3.cpp

@@ -137,7 +137,7 @@ void multiply_1level_slave_addslave3( tensor3D_t& T, unsigned int size, MPI_Comm
     int  a2, a4;
     unsigned int len = 0;
     
-    parameters_t params;
+    parameters_2_1_t params;
     MPI_Status status;
     char* expr_c;