diff -up nss/lib/libpkix/pkix_pl_nss/pki/pkix_pl_ocsprequest.c.gcc7 nss/lib/libpkix/pkix_pl_nss/pki/pkix_pl_ocsprequest.c
--- nss/lib/libpkix/pkix_pl_nss/pki/pkix_pl_ocsprequest.c.gcc7	2017-02-08 14:34:04.212655936 +0100
+++ nss/lib/libpkix/pkix_pl_nss/pki/pkix_pl_ocsprequest.c	2017-02-08 14:37:33.326388891 +0100
@@ -89,7 +89,7 @@ pkix_pl_OcspRequest_Hashcode(
         PKIX_HASHCODE(ocspRq->signerCert, &signerHash, plContext,
                 PKIX_CERTHASHCODEFAILED);
 
-        *pHashcode = (((((extensionHash << 8) || certHash) << 8) ||
+        *pHashcode = ((PKIX_UInt32)(((PKIX_UInt32)((extensionHash << 8) || certHash) << 8) ||
                 dateHash) << 8) || signerHash;
 
 cleanup: