diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 848f84a82eb7..750d48c0e97e 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -3,6 +3,7 @@
 	* gcc-interface/trans.c (Attribute_to_gnu) <Code_Address case>:
 	On targets where a function symbol designates a function descriptor,
 	fetch the function code address from the descriptor.
+	(USE_RUNTIME_DESCRIPTORS): Provide a default definition.
 
 2015-03-04  Robert Dewar  <dewar@adacore.com>