diff --git a/src/cryptlib/asn.cpp b/src/cryptlib/asn.cpp
index 88b015e..cc6be88 100644
--- a/src/cryptlib/asn.cpp
+++ b/src/cryptlib/asn.cpp
@@ -81,7 +81,7 @@ BERSequenceDecoder::BERSequenceDecoder(BufferedTransformation &inQueue)
     definiteLength = BERLengthDecode(inQueue, length);
 }
 
-BERSequenceDecoder::~BERSequenceDecoder()
+BERSequenceDecoder::~BERSequenceDecoder() NOEXCEPT_FALSE
 {
     if (!definiteLength)
     {   // remove end-of-content octects
diff --git a/src/cryptlib/asn.h b/src/cryptlib/asn.h
index 13c18e1..f20b03f 100644
--- a/src/cryptlib/asn.h
+++ b/src/cryptlib/asn.h
@@ -25,7 +25,7 @@ class BERSequenceDecoder : public BufferedTransformation
 {
 public:
     BERSequenceDecoder(BufferedTransformation &inQueue);
-    ~BERSequenceDecoder();
+    ~BERSequenceDecoder() NOEXCEPT_FALSE;
 
     void Put(byte) {}
     void Put(const byte *, unsigned int) {}
diff --git a/src/cryptlib/cryptlib.h b/src/cryptlib/cryptlib.h
index 145616f..c23b367 100644
--- a/src/cryptlib/cryptlib.h
+++ b/src/cryptlib/cryptlib.h
@@ -10,6 +10,12 @@
 #include <exception>
 #include <string>
 
+#if __cplusplus >= 201103L
+# define NOEXCEPT_FALSE noexcept(false)
+#else
+# define NOEXCEPT_FALSE
+#endif
+
 /// base class for all exceptions thrown by Crypto++
 class CryptlibException : public std::exception
 {
@@ -198,7 +204,7 @@ class BufferedTransformation
 {
 public:
     ///
-    virtual ~BufferedTransformation() {}
+    virtual ~BufferedTransformation() NOEXCEPT_FALSE {}
 
     //@Man: INPUT
     //@{