diff --git a/R/test-compiled-code.R b/R/test-compiled-code.R
index d175a956f..bd83f0f26 100644
--- a/R/test-compiled-code.R
+++ b/R/test-compiled-code.R
@@ -253,6 +253,28 @@ run_cpp_tests <- function(package) {
 #'     run_testthat_tests
 #' }
 #'
+#' Assuming you have `useDynLib(<pkg>, .registration = TRUE)` in your package's
+#' `NAMESPACE` file, this implies having routine registration code of the form:
+#'
+#' ```
+#' // The definition for this function comes from the file 'src/test-runner.cpp',
+#' // which is generated via `testthat::use_catch()`.
+#' extern SEXP run_testthat_tests();
+#'
+#' static const R_CallMethodDef callMethods[] = {
+#'   // other .Call method definitions,
+#'   {"run_testthat_tests", (DL_FUNC) &run_testthat_tests, 0},
+#'   {NULL, NULL, 0}
+#' };
+#'
+#' void R_init_<pkg>(DllInfo* dllInfo) {
+#'   R_registerRoutines(dllInfo, NULL, callMethods, NULL, NULL);
+#'   R_useDynamicSymbols(dllInfo, FALSE);
+#' }
+#' ```
+#'
+#' replacing `<pkg>` above with the name of your package, as appropriate.
+#'
 #' See [Controlling Visibility](https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Controlling-visibility)
 #' and [Registering Symbols](https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Registering-symbols)
 #' in the **Writing R Extensions** manual for more information.
diff --git a/man/use_catch.Rd b/man/use_catch.Rd
index 6b51243df..005f965f7 100644
--- a/man/use_catch.Rd
+++ b/man/use_catch.Rd
@@ -98,6 +98,27 @@ tests. \code{testthat} will look for a routine with one of the names:
     run_testthat_tests
 }
 
+Assuming you have \verb{useDynLib(<pkg>, .registration = TRUE)} in your package's
+\code{NAMESPACE} file, this implies having routine registration code of the form:
+
+\if{html}{\out{<div class="sourceCode">}}\preformatted{// The definition for this function comes from the file 'src/test-runner.cpp',
+// which is generated via `testthat::use_catch()`.
+extern SEXP run_testthat_tests();
+
+static const R_CallMethodDef callMethods[] = \{
+  // other .Call method definitions,
+  \{"run_testthat_tests", (DL_FUNC) &run_testthat_tests, 0\},
+  \{NULL, NULL, 0\}
+\};
+
+void R_init_<pkg>(DllInfo* dllInfo) \{
+  R_registerRoutines(dllInfo, NULL, callMethods, NULL, NULL);
+  R_useDynamicSymbols(dllInfo, FALSE);
+\}
+}\if{html}{\out{</div>}}
+
+replacing \verb{<pkg>} above with the name of your package, as appropriate.
+
 See \href{https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Controlling-visibility}{Controlling Visibility}
 and \href{https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Registering-symbols}{Registering Symbols}
 in the \strong{Writing R Extensions} manual for more information.