diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index afa8c6b3bd90..b24fb4fc9e20 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2009-09-23  Matthew Gingell <gingell@adacore.com>
+
+	* cplus-dem.c (ada_demangle): Ensure demangled is freed.
+
 2009-09-22  Ozkan Sezer  <sezeroz@gmail.com>
 
 	* choose-temp.c: Include unistd.h for mingw targets.
diff --git a/libiberty/cplus-dem.c b/libiberty/cplus-dem.c
index 416746753660..66285141ffa2 100644
--- a/libiberty/cplus-dem.c
+++ b/libiberty/cplus-dem.c
@@ -984,7 +984,10 @@ ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED)
       goto Suppress;
 
   if (! changed)
-    return NULL;
+    {
+      free (demangled);
+      return NULL;
+    }
   else
     return demangled;