diff --git a/src/Sound/beacon.cxx b/src/Sound/beacon.cxx
index ddc8750b0..5d9ae9594 100644
--- a/src/Sound/beacon.cxx
+++ b/src/Sound/beacon.cxx
@@ -25,18 +25,12 @@
 
 
 // constructor
-FGBeacon::FGBeacon() :
-    inner(NULL),
-    middle(NULL),
-    outer(NULL)
+FGBeacon::FGBeacon()
 {
 }
 
 // destructor
 FGBeacon::~FGBeacon() {
-    delete inner;
-    delete middle;
-    delete outer;
 }
 
 
diff --git a/src/Sound/beacon.hxx b/src/Sound/beacon.hxx
index 6c7021420..1c2fcd4b6 100644
--- a/src/Sound/beacon.hxx
+++ b/src/Sound/beacon.hxx
@@ -32,6 +32,8 @@
 
 #include <simgear/compiler.h>
 #include <simgear/sound/soundmgr_openal.hxx>
+#include <simgear/structure/SGReferenced.hxx>
+#include <simgear/structure/SGSharedPtr.hxx>
 
 #include "morse.hxx"
 
@@ -93,9 +95,9 @@ class FGBeacon {
 
 private:
 
-    SGSoundSample *inner;
-    SGSoundSample *middle;
-    SGSoundSample *outer;
+    SGSharedPtr<SGSoundSample> inner;
+    SGSharedPtr<SGSoundSample> middle;
+    SGSharedPtr<SGSoundSample> outer;
 
 public: