diff --git a/ChangeLog b/ChangeLog
index e88a82f25..613888b10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-06-30  Robert Larice
+ * src/spicelib/devices/bjt/bjtdefs.h ,
+ * src/spicelib/devices/dio/diodefs.h :
+   BJTtlev, BJTtlevc, DIOtlev, DIOtlevc, swallow type conversion warnings
+
 2011-06-30  Robert Larice
  * src/spicelib/devices/cpl/cplmpar.c ,
  * src/spicelib/devices/isrc/isrcpar.c ,
diff --git a/src/spicelib/devices/bjt/bjtdefs.h b/src/spicelib/devices/bjt/bjtdefs.h
index 6c51ec0b8..e9b93392d 100644
--- a/src/spicelib/devices/bjt/bjtdefs.h
+++ b/src/spicelib/devices/bjt/bjtdefs.h
@@ -378,8 +378,8 @@ typedef struct sBJTmodel {          /* model structure for a bjt */
     double BJTfNexp;
     double BJTsubSatCur;   /* input - don't use */
     double BJTemissionCoeffS;
-    unsigned BJTtlev;
-    unsigned BJTtlevc;
+    int    BJTtlev;
+    int    BJTtlevc;
     double BJTtbf1;
     double BJTtbf2;
     double BJTtbr1;
diff --git a/src/spicelib/devices/dio/diodefs.h b/src/spicelib/devices/dio/diodefs.h
index acef33215..d77110fa4 100644
--- a/src/spicelib/devices/dio/diodefs.h
+++ b/src/spicelib/devices/dio/diodefs.h
@@ -217,8 +217,8 @@ typedef struct sDIOmodel {       /* model structure for a diode */
     double DIOforwardKneeCurrent; /* Forward Knee current */
     double DIOreverseKneeCurrent; /* Reverse Knee current */
 
-    unsigned DIOtlev; /* Diode temperature equation selector */ 
-    unsigned DIOtlevc; /* Diode temperature equation selector */ 
+    int    DIOtlev; /* Diode temperature equation selector */
+    int    DIOtlevc; /* Diode temperature equation selector */
     double DIOactivationEnergy; /* activation energy (EG) */
     double DIOsaturationCurrentExp; /* Saturation current exponential (XTI) */
     double DIOcta; /* Area junction temperature coefficient */