diff --git a/mozilla/client.mk b/mozilla/client.mk
index 85feacb027e..2a1607c374e 100644
--- a/mozilla/client.mk
+++ b/mozilla/client.mk
@@ -410,7 +410,7 @@ MODULES_all :=                                  \
 # For branches, uncomment the MOZ_CO_TAG line with the proper tag,
 # and commit this file on that tag.
 #MOZ_CO_TAG          = <tag>
-NSPR_CO_TAG          = NSPR_4_7_6_BETA2
+NSPR_CO_TAG          = NSPR_4_7_6_RTM
 NSS_CO_TAG           = NSS_3_12_3_1_RTM
 LDAPCSDK_CO_TAG      = LDAPCSDK_6_0_3_CLIENT_BRANCH
 LOCALES_CO_TAG       =