diff --git a/include/boost/url/url_base.hpp b/include/boost/url/url_base.hpp
index 3c49471e6..f812af675 100644
--- a/include/boost/url/url_base.hpp
+++ b/include/boost/url/url_base.hpp
@@ -2253,6 +2253,7 @@ class BOOST_URL_DECL
         Linear.
 
         @param ps The params to set.
+        @param opt The options for encoding.
 
         @par BNF
         @code
@@ -2275,7 +2276,9 @@ class BOOST_URL_DECL
             @ref set_query.
     */
     url_base&
-    set_params( std::initializer_list<param_view> ps ) noexcept;
+    set_params(
+        std::initializer_list<param_view> ps,
+        encoding_opts opt = {}) noexcept;
 
     /** Set the query params
 
diff --git a/src/url_base.cpp b/src/url_base.cpp
index 27ba31d8f..568626775 100644
--- a/src/url_base.cpp
+++ b/src/url_base.cpp
@@ -1413,9 +1413,11 @@ encoded_params() noexcept
 
 url_base&
 url_base::
-set_params( std::initializer_list<param_view> ps ) noexcept
+set_params(
+    std::initializer_list<param_view> ps,
+    encoding_opts opt) noexcept
 {
-    params().assign(ps);
+    params(opt).assign(ps);
     return *this;
 }