diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 2e42918..f66bb73 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -556,7 +556,6 @@ libcrypto_la_SOURCES += ec/ecp_smpl.c
 noinst_HEADERS += ec/ec_lcl.h
 
 # ecdh
-libcrypto_la_SOURCES += ecdh/ecdh.h
 libcrypto_la_SOURCES += ecdh/ecdh_kdf.c
 libcrypto_la_SOURCES += ecdh/ech_err.c
 libcrypto_la_SOURCES += ecdh/ech_key.c