diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 6c70ea2..f77d165 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -363,7 +363,6 @@ set(
 	bn/bn_mod.c
 	bn/bn_mod_sqrt.c
 	bn/bn_mont.c
-	bn/bn_mpi.c
 	bn/bn_mul.c
 	bn/bn_nist.c
 	bn/bn_prime.c
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 0f0204e..4308de3 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -431,7 +431,6 @@ libcrypto_la_SOURCES += bn/bn_lib.c
 libcrypto_la_SOURCES += bn/bn_mod.c
 libcrypto_la_SOURCES += bn/bn_mod_sqrt.c
 libcrypto_la_SOURCES += bn/bn_mont.c
-libcrypto_la_SOURCES += bn/bn_mpi.c
 libcrypto_la_SOURCES += bn/bn_mul.c
 libcrypto_la_SOURCES += bn/bn_nist.c
 libcrypto_la_SOURCES += bn/bn_prime.c