diff --git a/src/usr/diag/prdf/plat/mem/prdfMemDynDealloc.C b/src/usr/diag/prdf/plat/mem/prdfMemDynDealloc.C
index 0ac00464216..6c6f96ffd7e 100644
--- a/src/usr/diag/prdf/plat/mem/prdfMemDynDealloc.C
+++ b/src/usr/diag/prdf/plat/mem/prdfMemDynDealloc.C
@@ -664,12 +664,12 @@ int32_t __getPortAddr<TYPE_MBA>( ExtensibleChip * i_chip, MemAddr i_addr,
 //------------------------------------------------------------------------------
 
 template<TYPE T>
-void __getGrpPrms( ExtensibleChip * i_chip, uint8_t o_portPos,
+void __getGrpPrms( ExtensibleChip * i_chip, uint8_t & o_portPos,
                    SCAN_COMM_REGISTER_CLASS * &o_mcfgp,
                    SCAN_COMM_REGISTER_CLASS * &o_mcfgpm );
 
 template<>
-void __getGrpPrms<TYPE_MCA>( ExtensibleChip * i_chip, uint8_t o_portPos,
+void __getGrpPrms<TYPE_MCA>( ExtensibleChip * i_chip, uint8_t & o_portPos,
                              SCAN_COMM_REGISTER_CLASS * &o_mcfgp,
                              SCAN_COMM_REGISTER_CLASS * &o_mcfgpm )
 {
@@ -683,7 +683,7 @@ void __getGrpPrms<TYPE_MCA>( ExtensibleChip * i_chip, uint8_t o_portPos,
 }
 
 template<>
-void __getGrpPrms<TYPE_OCMB_CHIP>( ExtensibleChip * i_chip, uint8_t o_portPos,
+void __getGrpPrms<TYPE_OCMB_CHIP>( ExtensibleChip * i_chip, uint8_t & o_portPos,
                                    SCAN_COMM_REGISTER_CLASS * &o_mcfgp,
                                    SCAN_COMM_REGISTER_CLASS * &o_mcfgpm )
 {
@@ -699,7 +699,7 @@ void __getGrpPrms<TYPE_OCMB_CHIP>( ExtensibleChip * i_chip, uint8_t o_portPos,
 }
 
 template<>
-void __getGrpPrms<TYPE_MBA>( ExtensibleChip * i_chip, uint8_t o_portPos,
+void __getGrpPrms<TYPE_MBA>( ExtensibleChip * i_chip, uint8_t & o_portPos,
                              SCAN_COMM_REGISTER_CLASS * &o_mcfgp,
                              SCAN_COMM_REGISTER_CLASS * &o_mcfgpm )
 {