diff --git a/x86/aes-decrypt-internal.asm b/x86/aes-decrypt-internal.asm
index aa6e3930eda03a06e1e372d8ae88ae2dc554be36..90a497689aa81be8b361b9406780025d6435d971 100644
--- a/x86/aes-decrypt-internal.asm
+++ b/x86/aes-decrypt-internal.asm
@@ -18,6 +18,8 @@ C along with the nettle library; see the file COPYING.LIB.  If not, write to
 C the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 C MA 02111-1307, USA.
 
+include_src(<x86/aes.m4>)
+
 C Register usage:
 
 C AES state
diff --git a/x86/aes-encrypt-internal.asm b/x86/aes-encrypt-internal.asm
index 5f6a29e148402fccdb94a26d57a1e9fb7b266fed..33e4570c4684f49636237e9ce3f02bf29366129e 100644
--- a/x86/aes-encrypt-internal.asm
+++ b/x86/aes-encrypt-internal.asm
@@ -18,6 +18,8 @@ C along with the nettle library; see the file COPYING.LIB.  If not, write to
 C the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 C MA 02111-1307, USA.
 
+include_src(<x86/aes.m4>)
+
 C Register usage:
 
 C AES state