diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index e96a797..97ad178 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -2009,7 +2009,7 @@
  *
  * Enable the multi-precision integer library.
  *
- * Module:  library/bignum.c
+ * Module:  library/bignum.c, library/bignum_new.c
  * Caller:  library/dhm.c
  *          library/ecp.c
  *          library/ecdsa.c
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index ed58a9e..19ba315 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -18,6 +18,7 @@
     asn1write.c
     base64.c
     bignum.c
+    bignum_new.c
     camellia.c
     ccm.c
     chacha20.c
diff --git a/library/Makefile b/library/Makefile
index 3c4c7ea..ac8f331 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -83,6 +83,7 @@
 	     asn1write.o \
 	     base64.o \
 	     bignum.o \
+	     bignum_new.o \
 	     camellia.o \
 	     ccm.o \
 	     chacha20.o \