diff --git a/src/ca/caServerID.h b/src/ca/caServerID.h
index 45b4e250e..fe6f6968d 100644
--- a/src/ca/caServerID.h
+++ b/src/ca/caServerID.h
@@ -1,5 +1,5 @@
-
-/*  $Id$
+/*
+ *  $Id$
  *
  *                    L O S  A L A M O S
  *              Los Alamos National Laboratory
@@ -19,7 +19,7 @@
 
 class caServerID {
 public:
-    caServerID ( const struct sockaddr_in & addrIn, unsigned char priority );
+    caServerID ( const struct sockaddr_in & addrIn, unsigned priority );
     bool operator == ( const caServerID & ) const;
     resTableIndex hash () const;
     static unsigned maxIndexBitWidth ();
@@ -38,8 +38,8 @@ static const unsigned caServerMinIndexBitWidth = 2u;
 static const unsigned caServerMaxIndexBitWidth = 32u;
 
 inline caServerID::caServerID ( 
-    const struct sockaddr_in & addrIn, unsigned char priorityIn ) :
-    addr ( addrIn ), pri ( priorityIn )
+    const struct sockaddr_in & addrIn, unsigned priorityIn ) :
+    addr ( addrIn ), pri ( static_cast <ca_uint8_t> ( priorityIn ) )
 {
     assert ( priorityIn <= 0xff );
 }
diff --git a/src/ca/cacIO.h b/src/ca/cacIO.h
index 9e743e3f9..6238b6ebe 100644
--- a/src/ca/cacIO.h
+++ b/src/ca/cacIO.h
@@ -1,4 +1,3 @@
-
 /*  
  *  $Id$
  *
@@ -124,7 +123,7 @@ public:
 //
 class epicsShareClass cacChannel {
 public:
-    typedef unsigned char priLev;
+    typedef unsigned priLev;
     static const priLev priorityMax;
     static const priLev priorityMin;
     static const priLev priorityDefault;
diff --git a/src/ca/cadef.h b/src/ca/cadef.h
index 4a174d29c..41ed6dd7b 100644
--- a/src/ca/cadef.h
+++ b/src/ca/cadef.h
@@ -242,7 +242,7 @@ epicsShareFunc int epicsShareAPI ca_search_and_connect
 /*  End of anachronistic entry points                                   */
 /************************************************************************/
 
-typedef unsigned char capri; 
+typedef unsigned capri; 
 #define CA_PRIORITY_MAX 99
 #define CA_PRIORITY_MIN 0
 #define CA_PRIORITY_DEFAULT CA_PRIORITY_MIN
diff --git a/src/ca/nciu.cpp b/src/ca/nciu.cpp
index a5729068e..9410032fa 100644
--- a/src/ca/nciu.cpp
+++ b/src/ca/nciu.cpp
@@ -1,5 +1,5 @@
-
-/*  $Id$
+/*
+ *  $Id$
  *
  *                    L O S  A L A M O S
  *              Los Alamos National Laboratory
@@ -58,7 +58,7 @@ nciu::nciu ( cac & cacIn, netiiu & iiuIn, cacChannelNotify & chanIn,
     retrySeqNo ( 0u ),
     nameLength ( static_cast <ca_uint16_t> ( strlen ( pNameIn ) + 1 ) ),
     typeCode ( USHRT_MAX ),
-    priority ( pri ),
+    priority ( static_cast <ca_uint8_t> ( pri ) ),
     f_connected ( false ),
     f_previousConn ( false ),
     f_claimSent ( false ),