1 files changed, 2 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 1a5c57a3fa..2863a7961e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -206,12 +206,14 @@ crypto_libbitcoin_crypto_a_SOURCES = \
   crypto/sha256.cpp \
   crypto/sha512.cpp \
   crypto/hmac_sha256.cpp \
+  crypto/rfc6979_hmac_sha256.cpp \
   crypto/hmac_sha512.cpp \
   crypto/ripemd160.cpp \
   crypto/common.h \
   crypto/sha256.h \
   crypto/sha512.h \
   crypto/hmac_sha256.h \
+  crypto/rfc6979_hmac_sha256.h \
   crypto/hmac_sha512.h \
   crypto/sha1.h \
   crypto/ripemd160.h