diff --git a/src/ca/legacy/pcas/generic/inBuf.cc b/src/ca/legacy/pcas/generic/inBuf.cc
index 43250d6e4..046c9f18a 100644
--- a/src/ca/legacy/pcas/generic/inBuf.cc
+++ b/src/ca/legacy/pcas/generic/inBuf.cc
@@ -14,6 +14,7 @@
  */
 
 #include <stdexcept>
+#include <new>
 
 #include <stdio.h>
 #include <string.h>