2 files changed, 4 insertions, 4 deletions
diff --git a/src/mac/cmac/cmac.cpp b/src/mac/cmac/cmac.cpp
index 37f83ffe4..7db597fff 100644
--- a/src/mac/cmac/cmac.cpp
+++ b/src/mac/cmac/cmac.cpp
@@ -130,9 +130,7 @@ MessageAuthenticationCode* CMAC::clone() const
 /*
 * CMAC Constructor
 */
-CMAC::CMAC(BlockCipher* e_in) :
-   MessageAuthenticationCode(e_in->block_size()),
-   e(e_in)
+CMAC::CMAC(BlockCipher* e_in) : e(e_in)
    {
    if(e->block_size() == 16)
       polynomial = 0x87;
diff --git a/src/mac/cmac/cmac.h b/src/mac/cmac/cmac.h
index aa9bfb38e..98634bdb7 100644
--- a/src/mac/cmac/cmac.h
+++ b/src/mac/cmac/cmac.h
@@ -19,10 +19,12 @@ namespace Botan {
 class BOTAN_DLL CMAC : public MessageAuthenticationCode
    {
    public:
-      void clear();
       std::string name() const;
+      size_t output_length() const { return e->block_size(); }
       MessageAuthenticationCode* clone() const;
 
+      void clear();
+
       Key_Length_Specification key_spec() const
          {
          return e->key_spec();