diff --git a/src/ASPHERE/compute_temp_asphere.cpp b/src/ASPHERE/compute_temp_asphere.cpp
index e39b82652d..14a737742d 100755
--- a/src/ASPHERE/compute_temp_asphere.cpp
+++ b/src/ASPHERE/compute_temp_asphere.cpp
@@ -70,12 +70,14 @@ void ComputeTempAsphere::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tempbias = 0;
+  tbias = NULL;
   if (id_bias) {
     tempbias = 1;
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
     tbias = modify->compute[i];
-  } else tempbias = 0;
+  }
 
   calculate_inertia();
 }
diff --git a/src/compute_temp.cpp b/src/compute_temp.cpp
index 8b2a8931c2..451247f910 100644
--- a/src/compute_temp.cpp
+++ b/src/compute_temp.cpp
@@ -58,6 +58,8 @@ void ComputeTemp::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tempbias = 0;
+  tbias = NULL;
   if (id_bias) {
     tempbias = 1;
     int i = modify->find_compute(id_bias);
diff --git a/src/compute_temp_com.cpp b/src/compute_temp_com.cpp
index 3b808c7cf2..2cfbf72164 100644
--- a/src/compute_temp_com.cpp
+++ b/src/compute_temp_com.cpp
@@ -66,6 +66,7 @@ void ComputeTempCOM::init()
   recount();
   masstotal = group->mass(igroup);
 
+  tbias = NULL;
   if (id_bias) {
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
diff --git a/src/compute_temp_deform.cpp b/src/compute_temp_deform.cpp
index cca5e0e5b5..40ba16136e 100644
--- a/src/compute_temp_deform.cpp
+++ b/src/compute_temp_deform.cpp
@@ -73,6 +73,7 @@ void ComputeTempDeform::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tbias = NULL;
   if (id_bias) {
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
diff --git a/src/compute_temp_partial.cpp b/src/compute_temp_partial.cpp
index eaacee47e4..e9b17ed930 100644
--- a/src/compute_temp_partial.cpp
+++ b/src/compute_temp_partial.cpp
@@ -67,6 +67,7 @@ void ComputeTempPartial::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tbias = NULL;
   if (id_bias) {
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
diff --git a/src/compute_temp_ramp.cpp b/src/compute_temp_ramp.cpp
index 91f6409816..f068f233bb 100644
--- a/src/compute_temp_ramp.cpp
+++ b/src/compute_temp_ramp.cpp
@@ -132,6 +132,7 @@ void ComputeTempRamp::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tbias = NULL;
   if (id_bias) {
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
diff --git a/src/compute_temp_region.cpp b/src/compute_temp_region.cpp
index efab6219de..873d1ae2eb 100644
--- a/src/compute_temp_region.cpp
+++ b/src/compute_temp_region.cpp
@@ -63,6 +63,7 @@ void ComputeTempRegion::init()
 {
   dof = 0;
 
+  tbias = NULL;
   if (id_bias) {
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
diff --git a/src/compute_temp_sphere.cpp b/src/compute_temp_sphere.cpp
index 4145db51c7..4e381b11e4 100644
--- a/src/compute_temp_sphere.cpp
+++ b/src/compute_temp_sphere.cpp
@@ -62,12 +62,14 @@ void ComputeTempSphere::init()
     fix_dof += modify->fix[i]->dof(igroup);
   recount();
 
+  tempbias = 0;
+  tbias = NULL;
   if (id_bias) {
     tempbias = 1;
     int i = modify->find_compute(id_bias);
     if (i < 0) error->all("Could not find compute ID for temperature bias");
     tbias = modify->compute[i];
-  } else tempbias = 0;
+  }
 
   if (atom->mass) {
     double *mass = atom->mass;