diff --git a/include/mp/flat/problem_flattener.h b/include/mp/flat/problem_flattener.h
index 25ff76f51..e960a0461 100644
--- a/include/mp/flat/problem_flattener.h
+++ b/include/mp/flat/problem_flattener.h
@@ -1292,7 +1292,8 @@ class ProblemFlattener :
                        "Eliminate AMPL defined variables "
                        "by substitution into linear, quadratic, and polynomial "
                        "expressions:\n"
-                       "\n.. value-table::\n",
+                       "\n.. value-table::\n"
+                             "\nSee also AMPL options linelim and substout.",
                        dvelim_, values_dvelim);
   }