diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98e681e5881..6d9502cc327 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@
 * `Repos`:
     * `Common`:
         * Fixes in `WriteOneToManyRepo#add`
+    * `Exposed`:
+        * Fixes in `ExposedOneToManyKeyValueRepo#add`
 
 ## 0.5.10
 
diff --git a/repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedOneToManyKeyValueRepo.kt b/repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedOneToManyKeyValueRepo.kt
index 86a4cb020cd..9d327ac846c 100644
--- a/repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedOneToManyKeyValueRepo.kt
+++ b/repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedOneToManyKeyValueRepo.kt
@@ -31,6 +31,9 @@ open class ExposedOneToManyKeyValueRepo<Key, Value>(
         transaction(database) {
             toAdd.keys.flatMap { k ->
                 toAdd[k] ?.mapNotNull { v ->
+                    if (select { keyColumn.eq(k).and(valueColumn.eq(v)) }.limit(1).count() > 0) {
+                        return@mapNotNull null
+                    }
                     insertIgnore {
                         it[keyColumn] = k
                         it[valueColumn] = v