diff --git a/NEWS b/NEWS
index d18dada1588..e25d793b971 100644
--- a/NEWS
+++ b/NEWS
@@ -34,6 +34,9 @@ PHP                                                                        NEWS
   . Fixed bug #71249 (ldap_mod_replace/ldap_mod_add store value as string
     "Array"). (Laruence)
 
+- mbsgring:
+  . Fixed bug #71397 (mb_send_mail segmentation fault). (Yasuo)
+
 - SOAP:
   . Fixed bug #70979 (crash with bad soap request). (Anatol)
   
diff --git a/ext/mbstring/mbstring.c b/ext/mbstring/mbstring.c
index 4fdb3d5b2e5..be4b1e49129 100644
--- a/ext/mbstring/mbstring.c
+++ b/ext/mbstring/mbstring.c
@@ -4145,7 +4145,7 @@ PHP_FUNCTION(mb_send_mail)
 		suppressed_hdrs.cnt_type = 1;
 	}
 
-	if ((s = zend_hash_str_find_ptr(&ht_headers, "CONTENT-TRANSFER-ENCODING", sizeof("CONTENT-TRANSFER-ENCODING") - 1))) {
+	if ((s = zend_hash_str_find(&ht_headers, "CONTENT-TRANSFER-ENCODING", sizeof("CONTENT-TRANSFER-ENCODING") - 1))) {
 		enum mbfl_no_encoding _body_enc;
 
 		_body_enc = mbfl_name2no_encoding(Z_STRVAL_P(s));