2 files changed, 2 insertions, 2 deletions
diff --git a/src/mac/cbc_mac/cbc_mac.cpp b/src/mac/cbc_mac/cbc_mac.cpp
index a3899c87e..118570e72 100644
--- a/src/mac/cbc_mac/cbc_mac.cpp
+++ b/src/mac/cbc_mac/cbc_mac.cpp
@@ -89,7 +89,6 @@ MessageAuthenticationCode* CBC_MAC::clone() const
 * CBC-MAC Constructor
 */
 CBC_MAC::CBC_MAC(BlockCipher* e_in) :
-   MessageAuthenticationCode(e_in->block_size()),
    e(e_in), state(e->block_size())
    {
    position = 0;
diff --git a/src/mac/cbc_mac/cbc_mac.h b/src/mac/cbc_mac/cbc_mac.h
index ff2a8f3fa..5cc8adc67 100644
--- a/src/mac/cbc_mac/cbc_mac.h
+++ b/src/mac/cbc_mac/cbc_mac.h
@@ -19,9 +19,10 @@ namespace Botan {
 class BOTAN_DLL CBC_MAC : public MessageAuthenticationCode
    {
    public:
-      void clear();
       std::string name() const;
       MessageAuthenticationCode* clone() const;
+      size_t output_length() const { return e->block_size(); }
+      void clear();
 
       Key_Length_Specification key_spec() const
          {