diff --git a/crypto/asymmetric_keys/pkcs7_key_type.c b/crypto/asymmetric_keys/pkcs7_key_type.c
index 197ecdc0a5a1b14e1e746baaae9dbd9bce30f024..3de5fb011de0b3b64e0dfde2b2c6d17c631dd3d1 100644
--- a/crypto/asymmetric_keys/pkcs7_key_type.c
+++ b/crypto/asymmetric_keys/pkcs7_key_type.c
@@ -70,7 +70,7 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep)
  * user defined keys take an arbitrary string as the description and an
  * arbitrary blob of data as the payload
  */
-struct key_type key_type_pkcs7 = {
+static struct key_type key_type_pkcs7 = {
 	.name			= "pkcs7_test",
 	.def_lookup_type	= KEYRING_SEARCH_LOOKUP_DIRECT,
 	.preparse		= pkcs7_preparse,