diff --git a/src/compute_temp_ramp.cpp b/src/compute_temp_ramp.cpp
index c22e0e9507..d77d3063d9 100644
--- a/src/compute_temp_ramp.cpp
+++ b/src/compute_temp_ramp.cpp
@@ -212,6 +212,6 @@ void ComputeTempRamp::compute_vector()
       t[5] += massone * vtmp[1]*vtmp[2];
     }
 
-  MPI_Allreduce(&t,&vector,6,MPI_DOUBLE,MPI_SUM,world);
+  MPI_Allreduce(t,vector,6,MPI_DOUBLE,MPI_SUM,world);
   for (i = 0; i < 6; i++) vector[i] *= force->mvv2e;
 }
diff --git a/src/compute_temp_region.cpp b/src/compute_temp_region.cpp
index ca79c8df35..04e7117ae5 100644
--- a/src/compute_temp_region.cpp
+++ b/src/compute_temp_region.cpp
@@ -128,6 +128,6 @@ void ComputeTempRegion::compute_vector()
       t[5] += massone * v[i][1]*v[i][2];
     }
 
-  MPI_Allreduce(&t,&vector,6,MPI_DOUBLE,MPI_SUM,world);
+  MPI_Allreduce(t,vector,6,MPI_DOUBLE,MPI_SUM,world);
   for (i = 0; i < 6; i++) vector[i] *= force->mvv2e;
 }