diff --git a/Makefile.am b/Makefile.am
index 9e88c45fd4b250bd2e0293271e88b4a312ca17a6..10c74653b5d0b3da4b3951bb0e8918648c206151 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,18 +6,21 @@ libnettleincludedir = $(includedir)/nettle
 
 lib_LIBRARIES = libnettle.a
 libnettleinclude_HEADERS = aes.h arcfour.h blowfish.h cast128.h \
+			   cbc.h \
 			   des.h des-compat.h \
-			   serpent.h twofish.h \
-			   md5.h md5-compat.h sha.h \
-			   cbc.h yarrow.h \
-			   rsa.h nettle-meta.h
-
+			   hmac.h \
+			   md5.h md5-compat.h \
+			   nettle-meta.h rsa.h \
+			   serpent.h sha.h twofish.h \
+			   yarrow.h
+			   
 libnettle_a_SOURCES = aes.c aes.h aes-meta.c arcfour.c arcfour.h arcfour-meta.c\
 		      cast128.c cast128.h cast128_sboxes.h cast128-meta.c \
 		      blowfish.h blowfish.c \
 		      cbc.c \
 		      des.c des.h desinfo.h desCode.h \
 		      des3.c des-compat.c des-compat.h \
+		      hmac.c hmac-md5.c \
 		      md5.c md5.h md5-compat.c md5-compat.h md5-meta.c \
 		      sha.h sha1.c sha1-meta.c sha256.c sha256-meta.c \
 		      serpent.c serpent.h serpent_sboxes.h serpent-meta.c \