diff -ur a/src/library/stats/man/nls.Rd b/src/library/stats/man/nls.Rd
--- a/src/library/stats/man/nls.Rd   2021-05-21 19:15:02.000000000 -0300
+++ b/src/library/stats/man/nls.Rd   2021-08-12 12:39:00.094758280 -0300
@@ -287,7 +287,7 @@
 options(digits = 10) # more accuracy for 'trace'
 ## IGNORE_RDIFF_BEGIN
 try(nlm1 <- update(nlmod, control = list(tol = 1e-7))) # where central diff. work here:
-   (nlm2 <- update(nlmod, control = list(tol = 8e-8, nDcentral=TRUE), trace=TRUE))
+   (nlm2 <- update(nlmod, control = list(tol = 8e-8, nDcentral=TRUE, warnOnly=TRUE), trace=TRUE))
 ## --> convergence tolerance  4.997e-8 (in 11 iter.)
 ## IGNORE_RDIFF_END