diff --git a/libs/libxx/libxx_delete.cxx b/libs/libxx/libxx_delete.cxx
index c57e5d1c2d..3d9edc0cb5 100644
--- a/libs/libxx/libxx_delete.cxx
+++ b/libs/libxx/libxx_delete.cxx
@@ -49,7 +49,7 @@
 // Name: delete
 //***************************************************************************
 
-void operator delete(FAR void *ptr)
+void operator delete(FAR void *ptr) throw()
 {
   lib_free(ptr);
 }
diff --git a/libs/libxx/libxx_deletea.cxx b/libs/libxx/libxx_deletea.cxx
index 845d1ac0ab..a092a66c76 100644
--- a/libs/libxx/libxx_deletea.cxx
+++ b/libs/libxx/libxx_deletea.cxx
@@ -49,7 +49,7 @@
 // Name: delete[]
 //***************************************************************************
 
-void operator delete[](FAR void *ptr)
+void operator delete[](FAR void *ptr) throw()
 {
   lib_free(ptr);
 }