diff --git a/src/cas/io/bsdSocket/ipIgnoreEntry.cpp b/src/cas/io/bsdSocket/ipIgnoreEntry.cpp
index 080be525e..135ca6be8 100644
--- a/src/cas/io/bsdSocket/ipIgnoreEntry.cpp
+++ b/src/cas/io/bsdSocket/ipIgnoreEntry.cpp
@@ -63,7 +63,7 @@ void ipIgnoreEntry::operator delete ( void * pCadaver,
 }
 #endif
 
-void * ipIgnoreEntry::operator new ( size_t )
+void * ipIgnoreEntry::operator new ( size_t ) // X aCC 361
 {
     // The HPUX compiler seems to require this even though no code
     // calls it directly
diff --git a/src/libCom/timer/timer.cpp b/src/libCom/timer/timer.cpp
index 9cf70af0b..1f33c1930 100644
--- a/src/libCom/timer/timer.cpp
+++ b/src/libCom/timer/timer.cpp
@@ -223,7 +223,7 @@ void timer::show ( unsigned int level ) const
     }
 }
 
-void * timer::operator new ( size_t )
+void * timer::operator new ( size_t ) // X aCC 361
 {
     // The HPUX compiler seems to require this even though no code
     // calls it directly
@@ -241,7 +241,7 @@ void timer::operator delete ( void * )
         __FILE__, __LINE__ );
 }
 
-void * epicsTimerForC::operator new ( size_t )
+void * epicsTimerForC::operator new ( size_t ) // X aCC 361
 {
     // The HPUX compiler seems to require this even though no code
     // calls it directly