diff --git a/src/spicelib/devices/bsim3/b3mpar.c b/src/spicelib/devices/bsim3/b3mpar.c
index 0df11537a..3523bb10d 100644
--- a/src/spicelib/devices/bsim3/b3mpar.c
+++ b/src/spicelib/devices/bsim3/b3mpar.c
@@ -1468,7 +1468,7 @@ GENmodel *inMod)
             break;
 
         case  BSIM3_MOD_TNOM :
-            mod->BSIM3tnom = value->rValue;
+            mod->BSIM3tnom = value->rValue + CONSTCtoK;
             mod->BSIM3tnomGiven = TRUE;
             break;
         case  BSIM3_MOD_CGSO :
diff --git a/src/spicelib/devices/bsim3/b3set.c b/src/spicelib/devices/bsim3/b3set.c
index 7bbc74632..b733d45de 100644
--- a/src/spicelib/devices/bsim3/b3set.c
+++ b/src/spicelib/devices/bsim3/b3set.c
@@ -723,8 +723,8 @@ IFuid tmpName;
         /* unit degree celcius */
         if (!model->BSIM3tnomGiven)  
 	    model->BSIM3tnom = ckt->CKTnomTemp; 
-        else
-            model->BSIM3tnom = model->BSIM3tnom + 273.15;    
+/*        else
+            model->BSIM3tnom = model->BSIM3tnom + 273.15; we make this transform in b3mpar.c in the first run */
         if (!model->BSIM3lintnoiGiven)
             model->BSIM3lintnoi = 0.0;  /* unit m */  
         if (!model->BSIM3LintGiven)