diff --git a/CHANGES.md b/CHANGES.md
index 2981491..4589ee9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,6 @@
 ## 1.0.next in progress
 
+* Fix #259 so column names are always unqualified in inserts. (@jrdoane)
 * Switch dev/test pipeline to use CLI/`deps.edn` instead of Leiningen.
 * Remove macrovich dependency as this is no longer needed with modern ClojureScript.
 * Add mention of `next.jdbc` everywhere `clojure.java.jdbc` was mentioned.
diff --git a/src/honeysql/format.cljc b/src/honeysql/format.cljc
index 0fafcb5..38f7ec5 100644
--- a/src/honeysql/format.cljc
+++ b/src/honeysql/format.cljc
@@ -615,13 +615,15 @@
   (if (and (sequential? table) (sequential? (first table)))
     (str "INSERT INTO "
          (to-sql (ffirst table))
-         " (" (comma-join (map to-sql (second (first table)))) ") "
+         (binding [*namespace-as-table?* false]
+           (str " (" (comma-join (map to-sql (second (first table)))) ") "))
          (binding [*subquery?* false]
            (to-sql (second table))))
     (str "INSERT INTO " (to-sql table))))
 
 (defmethod format-clause :columns [[_ fields] _]
-  (str "(" (comma-join (map to-sql fields)) ")"))
+  (binding [*namespace-as-table?* false]
+    (str "(" (comma-join (map to-sql fields)) ")")))
 
 (defmethod format-clause :composite [[_ fields] _]
   (comma-join (map to-sql fields)))
@@ -632,7 +634,9 @@
                                  (str "(" (comma-join (map to-sql x)) ")"))))
     (let [cols (keys (first values))]
       (str
-       "(" (comma-join (map to-sql cols)) ") VALUES "
+       (binding [*namespace-as-table?* false]
+         (str "(" (comma-join (map to-sql cols)) ")"))
+       " VALUES "
        (comma-join (for [x values]
                      (str "(" (comma-join (map #(to-sql (get x %)) cols)) ")")))))))
 
diff --git a/test/honeysql/format_test.cljc b/test/honeysql/format_test.cljc
index cf8258c..935a15f 100644
--- a/test/honeysql/format_test.cljc
+++ b/test/honeysql/format_test.cljc
@@ -85,6 +85,19 @@
   (is (= (format {:insert-into [[:foo [:a :b :c]] {:select [:d :e :f] :from [:baz]}]})
          ["INSERT INTO foo (a, b, c) SELECT d, e, f FROM baz"])))
 
+(deftest insert-into-namespaced
+  ;; un-namespaced: works as expected:
+  (is (= (format {:insert-into :foo :values [{:foo/id 1}]})
+         ["INSERT INTO foo (id) VALUES (?)" 1]))
+  (is (= (format {:insert-into :foo :columns [:foo/id] :values [[2]]})
+         ["INSERT INTO foo (id) VALUES (?)" 2]))
+  (is (= (format {:insert-into :foo :values [{:foo/id 1}]}
+                 :namespace-as-table? true)
+         ["INSERT INTO foo (id) VALUES (?)" 1]))
+  (is (= (format {:insert-into :foo :columns [:foo/id] :values [[2]]}
+                 :namespace-as-table? true)
+         ["INSERT INTO foo (id) VALUES (?)" 2])))
+
 (deftest exists-test
   (is (= (format {:exists {:select [:a] :from [:foo]}})
          ["EXISTS (SELECT a FROM foo)"]))