diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1655b82..650a38a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changes
 
 * 2.4.next in progress
+  * Address [#452](https://github.com/seancorfield/honeysql/pull/452) by adding `:replace-into` to the core SQL supported, instead of just for the MySQL and SQLite dialects (so the latter is not needed yet).
   * Address [#451](https://github.com/seancorfield/honeysql/issues/451) by adding a test for it, showing how `:nest` produces the desired result.
   * Address [#447](https://github.com/seancorfield/honeysql/issues/447) by updating GitHub Actions and dependencies.
   * Address [#445](https://github.com/seancorfield/honeysql/issues/445) and [#453](https://github.com/seancorfield/honeysql/issues/453) by adding key/constraint examples to `CREATE TABLE` docs.
diff --git a/doc/clause-reference.md b/doc/clause-reference.md
index 76c9ff2..2a9d5e3 100644
--- a/doc/clause-reference.md
+++ b/doc/clause-reference.md
@@ -556,7 +556,8 @@ or a table/column specifier and a SQL query.
 For the first and second cases, you'll use the `:values` clause
 to specify rows of values to insert.
 
-`:replace-into` is part of the `:mysql` dialect that produces a `REPLACE INTO`
+`:replace-into` is only supported by MySQL and SQLite but is
+part of HoneySQL's "core" dialect anyway. It produces a `REPLACE INTO`
 statement but otherwise has identical syntax to `:insert-into`.
 
 ```clojure
diff --git a/src/honey/sql.cljc b/src/honey/sql.cljc
index 134ef7e..200aaad 100644
--- a/src/honey/sql.cljc
+++ b/src/honey/sql.cljc
@@ -55,7 +55,7 @@
    :table
    :select :select-distinct :select-distinct-on :select-top :select-distinct-top
    :into :bulk-collect-into
-   :insert-into :update :delete :delete-from :truncate
+   :insert-into :replace-into :update :delete :delete-from :truncate
    :columns :set :from :using
    :join-by
    :join :left-join :right-join :inner-join :outer-join :full-join
@@ -105,13 +105,7 @@
                :sqlserver {:quote #(strop \[ % \])}
                :mysql     {:quote #(strop \` % \`)
                            :clause-order-fn
-                           #(do
-                              ;; side-effect: updates global clauses...
-                              (register-clause! :replace-into :insert-into :insert-into)
-                              (-> %
-                                  (add-clause-before :set :where)
-                                  ;; ...but not in-flight clauses:
-                                  (add-clause-before :replace-into :insert-into)))}
+                           #(add-clause-before % :set :where)}
                :oracle    {:quote #(strop \" % \") :as false}})))
 
 ; should become defonce
@@ -1171,6 +1165,7 @@
          :into            #'format-select-into
          :bulk-collect-into #'format-select-into
          :insert-into     #'format-insert
+         :replace-into    #'format-insert
          :update          (check-where #'format-selector)
          :delete          (check-where #'format-selects)
          :delete-from     (check-where #'format-selector)
diff --git a/src/honey/sql/helpers.cljc b/src/honey/sql/helpers.cljc
index 52e6daa..d25bd19 100644
--- a/src/honey/sql/helpers.cljc
+++ b/src/honey/sql/helpers.cljc
@@ -486,6 +486,19 @@
       (generic :insert-into [data [table cols] statement])
       (generic :insert-into args'))))
 
+(defn replace-into
+  "Accepts a table name or a table/alias pair. That
+  can optionally be followed by a collection of
+  column names. That can optionally be followed by
+  a (select) statement clause.
+
+  The arguments are identical to insert-into.
+  The REPLACE INTO statement is only supported by
+  MySQL and SQLite."
+  {:arglists '([table] [table cols] [table statement] [table cols statement])}
+  [& args]
+  (apply insert-into args))
+
 (defn update
   "Accepts either a table name or a table/alias pair.
 
diff --git a/test/honey/sql_test.cljc b/test/honey/sql_test.cljc
index 4105806..bd60621 100644
--- a/test/honey/sql_test.cljc
+++ b/test/honey/sql_test.cljc
@@ -1037,9 +1037,6 @@ ORDER BY id = ? DESC
   (is (= ["SELECT \"A\"\"B\""] (sut/format {:select (keyword "A\"B")} {:dialect :oracle}))))
 
 (deftest issue-421-mysql-replace-into
-  ;; because the :mysql dialect registers a new clause, and we've probably already run
-  ;; tests with that dialect, we can't test that :replace-into throws an exception when
-  ;; no :dialect is specified because the clause might already be in place:
   (is (= ["INSERT INTO table VALUES (?, ?, ?)" 1 2 3]
          (sut/format {:insert-into :table :values [[1 2 3]]})))
   (is (= ["REPLACE INTO table VALUES (?, ?, ?)" 1 2 3]