diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 62a62f7119..787e9c2fac 100644
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -3504,7 +3504,9 @@ wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart,
 /* static */
 void wxDateTimeHolidayAuthority::ClearAllAuthorities()
 {
+#if (!(defined(__VISAGECPP__) && (__IBMCPP__ < 400 || __IBMC__ < 400 )))
     WX_CLEAR_ARRAY(ms_authorities);
+#endif
 }
 
 /* static */