diff --git a/src/ASM/ASMbase.C b/src/ASM/ASMbase.C
index 047a8b25..bfaf28f4 100644
--- a/src/ASM/ASMbase.C
+++ b/src/ASM/ASMbase.C
@@ -29,6 +29,13 @@ ASMbase::ASMbase (unsigned char n_p, unsigned char n_s, unsigned char n_f)
 }
 
 
+ASMbase::~ASMbase ()
+{
+  for (MPCIter it = mpcs.begin(); it != mpcs.end(); it++)
+    delete *it;
+}
+
+
 void ASMbase::clear (bool retainGeometry)
 {
   if (retainGeometry) // Clear all FE structures, including the elements
@@ -37,8 +44,12 @@ void ASMbase::clear (bool retainGeometry)
     for (size_t i = 0; i < MNPC.size(); i++) MNPC[i].clear();
 
   // Erase the nodes, boundary conditions and multi-point constraints
+  for (MPCIter it = mpcs.begin(); it != mpcs.end(); it++)
+    delete *it;
+
   MLGN.clear();
   BCode.clear();
+  dCode.clear();
   mpcs.clear();
 }
 
diff --git a/src/ASM/ASMbase.h b/src/ASM/ASMbase.h
index f51a96ae..ee6f69f0 100644
--- a/src/ASM/ASMbase.h
+++ b/src/ASM/ASMbase.h
@@ -75,8 +75,8 @@ protected:
   ASMbase(unsigned char n_p, unsigned char n_s, unsigned char n_f);
 
 public:
-  //! \brief Empty destructor.
-  virtual ~ASMbase() {}
+  //! \brief The destructor frees the dynamically allocated data objects.
+  virtual ~ASMbase();
 
   //! \brief Checks if this patch is empty.
   virtual bool empty() const = 0;