Index: ext/openssl/ossl_x509ext.c
===================================================================
--- ext/openssl/ossl_x509ext.c	(revision 22918)
+++ ext/openssl/ossl_x509ext.c	(working copy)
@@ -325,15 +325,15 @@
 	ossl_raise(eX509ExtError, "malloc error");
     memcpy(s, RSTRING_PTR(data), RSTRING_LEN(data));
     if(!(asn1s = ASN1_OCTET_STRING_new())){
-	free(s);
+	OPENSSL_free(s);
 	ossl_raise(eX509ExtError, NULL);
     }
     if(!M_ASN1_OCTET_STRING_set(asn1s, s, RSTRING_LEN(data))){
-	free(s);
+	OPENSSL_free(s);
 	ASN1_OCTET_STRING_free(asn1s);
 	ossl_raise(eX509ExtError, NULL);
     }
-    free(s);
+    OPENSSL_free(s);
     GetX509Ext(self, ext);
     X509_EXTENSION_set_data(ext, asn1s);