diff --git a/old-configure.in b/old-configure.in
index 504f3e6132f6..e1ca5ad18dfe 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -1764,7 +1764,7 @@ MOZ_ARG_WITH_BOOL(system-nss,
     _USE_SYSTEM_NSS=1 )
 
 if test -n "$_USE_SYSTEM_NSS"; then
-    AM_PATH_NSS(3.38, [MOZ_SYSTEM_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
+    AM_PATH_NSS(3.39, [MOZ_SYSTEM_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
 fi
 
 if test -z "$MOZ_SYSTEM_NSS"; then