diff --git a/crypto/asn1/tasn_new.c b/crypto/asn1/tasn_new.c
index da0cb266e4..b3a1c3c69d 100644
--- a/crypto/asn1/tasn_new.c
+++ b/crypto/asn1/tasn_new.c
@@ -62,6 +62,7 @@
 #include <openssl/objects.h>
 #include <openssl/err.h>
 #include <openssl/asn1t.h>
+#include <memory.h>
 
 static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine);
 static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);