diff --git a/src/Simplex_tree/concept/FiltrationValue.h b/src/Simplex_tree/concept/FiltrationValue.h
index 4bad0b625..2b1cc03b2 100644
--- a/src/Simplex_tree/concept/FiltrationValue.h
+++ b/src/Simplex_tree/concept/FiltrationValue.h
@@ -46,7 +46,7 @@ struct FiltrationValue {
    * a lifetime including those two values. The result is stored in the first parameter.
    * The overload for arithmetic types like `double` or `int` is already implemented as the minimum of the
    * two given values and can also be used for non native arithmetic types like `CGAL::Gmpq` as long as it has an
-   * `operator<`. The overload is available with @ref Gudhi::unify_lifetimes in @ref simplex_tree_options.h "".
+   * `operator<`. The overload is available with @ref Gudhi::unify_lifetimes "".
    *
    * For a k-critical filtration, FiltrationValue should be able to store an union of values (corresponding to the
    * different births of a same simplex) and this method adds the values of @p f2 in @p f1 and removes the values
@@ -63,7 +63,7 @@ struct FiltrationValue {
    * @brief Given two filtration values, stores in the first value the lowest common upper bound of the two values.
    * The overload for arithmetic types like `double` or `int` is already implemented as the maximum of the two
    * given values and can also be used for non native arithmetic types like `CGAL::Gmpq` as long as it has an
-   * `operator<`. The overload is available with @ref Gudhi::intersect_lifetimes in @ref simplex_tree_options.h "".
+   * `operator<`. The overload is available with @ref Gudhi::intersect_lifetimes "".
    *
    * @return True if and only if the values in @p f1 were actually modified.
    */
diff --git a/src/Simplex_tree/include/gudhi/Simplex_tree.h b/src/Simplex_tree/include/gudhi/Simplex_tree.h
index c6033c2b2..b5235531e 100644
--- a/src/Simplex_tree/include/gudhi/Simplex_tree.h
+++ b/src/Simplex_tree/include/gudhi/Simplex_tree.h
@@ -2290,7 +2290,7 @@ class Simplex_tree {
    * retrieves the original values and outputs the extended simplex type.
    *
    * @warning Currently only works for @ref SimplexTreeOptions::Filtration_value which are
-   * float types like `float` or `double`.
+   * float types like `float` or `double`, or **signed** integers.
    *
    * @exception std::invalid_argument In debug mode if the Simplex tree contains a vertex with the largest
    * Vertex_handle, as this method requires to create an extra vertex internally.