diff --git a/crypto/drbg.c b/crypto/drbg.c
index 3132967..1b4587e 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -98,6 +98,7 @@
  */
 
 #include <crypto/drbg.h>
+#include <crypto/internal/cipher.h>
 #include <linux/kernel.h>
 
 /***************************************************************
@@ -2161,3 +2162,4 @@ MODULE_DESCRIPTION("NIST SP800-90A Deterministic Random Bit Generator (DRBG) "
 		   CRYPTO_DRBG_HMAC_STRING
 		   CRYPTO_DRBG_CTR_STRING);
 MODULE_ALIAS_CRYPTO("stdrng");
+MODULE_IMPORT_NS(CRYPTO_INTERNAL);