diff --git a/server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ExtensionStoreDataLoader.kt b/server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ExtensionStoreDataLoader.kt
index bba4788b6..77f6181e3 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ExtensionStoreDataLoader.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/graphql/dataLoaders/ExtensionStoreDataLoader.kt
@@ -21,26 +21,6 @@ class ExtensionStoreDataLoader : KotlinDataLoader<String, ExtensionStoreType> {
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, ExtensionStoreType> =
         DataLoaderFactory.newDataLoader { ids ->
-            future {
-                transaction {
-                    addLogger(Slf4jSqlDebugLogger)
-                    val manga =
-                        ExtensionStoreTable
-                            .selectAll()
-                            .where { ExtensionStoreTable.indexUrl inList ids }
-                            .map { ExtensionStoreType(it) }
-                            .associateBy { it.indexUrl }
-                    ids.map { manga[it] }
-                }
-            }
-        }
-}
-
-class ExtensionStoreForExtension : KotlinDataLoader<String, ExtensionStoreType> {
-    override val dataLoaderName = "ExtensionStoreForExtension"
-
-    override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, ExtensionStoreType> =
-        DataLoaderFactory.newDataLoader<String, ExtensionStoreType> { ids ->
             future {
                 transaction {
                     addLogger(Slf4jSqlDebugLogger)
@@ -50,14 +30,14 @@ class ExtensionStoreForExtension : KotlinDataLoader<String, ExtensionStoreType>
                             .where { ExtensionStoreTable.indexUrl inList ids }
                             .map { ExtensionStoreType(it) }
                             .associateBy { it.indexUrl }
-                    ids.map { (extensionStoreByIndexUrl[it]) }
+                    ids.map { extensionStoreByIndexUrl[it] }
                 }
             }
         }
 }
 
-class ExtensionForExtensionStore : KotlinDataLoader<String, ExtensionNodeList> {
-    override val dataLoaderName = "ExtensionForExtensionStore"
+class ExtensionsForExtensionStore : KotlinDataLoader<String, ExtensionNodeList> {
+    override val dataLoaderName = "ExtensionsForExtensionStore"
 
     override fun getDataLoader(graphQLContext: GraphQLContext): DataLoader<String, ExtensionNodeList> =
         DataLoaderFactory.newDataLoader<String, ExtensionNodeList> { ids ->
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/graphql/server/TachideskDataLoaderRegistryFactory.kt b/server/src/main/kotlin/suwayomi/tachidesk/graphql/server/TachideskDataLoaderRegistryFactory.kt
index 07f1d7d24..6dc1cbfcc 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/graphql/server/TachideskDataLoaderRegistryFactory.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/graphql/server/TachideskDataLoaderRegistryFactory.kt
@@ -20,10 +20,9 @@ import suwayomi.tachidesk.graphql.dataLoaders.DisplayScoreForTrackRecordDataLoad
 import suwayomi.tachidesk.graphql.dataLoaders.DisplayScoreForTrackSearchDataLoader
 import suwayomi.tachidesk.graphql.dataLoaders.DownloadedChapterCountForMangaDataLoader
 import suwayomi.tachidesk.graphql.dataLoaders.ExtensionDataLoader
-import suwayomi.tachidesk.graphql.dataLoaders.ExtensionForExtensionStore
+import suwayomi.tachidesk.graphql.dataLoaders.ExtensionsForExtensionStore
 import suwayomi.tachidesk.graphql.dataLoaders.ExtensionForSourceDataLoader
 import suwayomi.tachidesk.graphql.dataLoaders.ExtensionStoreDataLoader
-import suwayomi.tachidesk.graphql.dataLoaders.ExtensionStoreForExtension
 import suwayomi.tachidesk.graphql.dataLoaders.FirstUnreadChapterForMangaDataLoader
 import suwayomi.tachidesk.graphql.dataLoaders.GlobalMetaDataLoader
 import suwayomi.tachidesk.graphql.dataLoaders.HasDuplicateChaptersForMangaDataLoader
@@ -81,9 +80,8 @@ class TachideskDataLoaderRegistryFactory {
                 SourceMetaDataLoader(),
                 ExtensionDataLoader(),
                 ExtensionForSourceDataLoader(),
-                ExtensionForExtensionStore(),
+                ExtensionsForExtensionStore(),
                 ExtensionStoreDataLoader(),
-                ExtensionStoreForExtension(),
                 TrackerDataLoader(),
                 TrackerStatusesDataLoader(),
                 TrackerScoresDataLoader(),
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionStoreType.kt b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionStoreType.kt
index 2106a4f79..da794a7db 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionStoreType.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionStoreType.kt
@@ -40,7 +40,7 @@ class ExtensionStoreType(
     )
 
     fun extensions(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<ExtensionNodeList> =
-        dataFetchingEnvironment.getValueFromDataLoader<String, ExtensionNodeList>("ExtensionForExtensionStore", indexUrl)
+        dataFetchingEnvironment.getValueFromDataLoader<String, ExtensionNodeList>("ExtensionsForExtensionStore", indexUrl)
 }
 
 data class ExtensionStoreNodeList(
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionType.kt b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionType.kt
index c276370f7..cbddc8e59 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionType.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/graphql/types/ExtensionType.kt
@@ -72,7 +72,7 @@ class ExtensionType(
         dataFetchingEnvironment.getValueFromDataLoader<String, SourceNodeList>("SourcesForExtensionDataLoader", pkgName)
 
     fun extensionStore(dataFetchingEnvironment: DataFetchingEnvironment): CompletableFuture<ExtensionStoreType> =
-        dataFetchingEnvironment.getValueFromDataLoader<String, ExtensionStoreType>("ExtensionStoreForExtension", storeIndexUrl.orEmpty())
+        dataFetchingEnvironment.getValueFromDataLoader<String, ExtensionStoreType>("ExtensionStoreDataLoader", storeIndexUrl.orEmpty())
 }
 
 data class ExtensionNodeList(
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/model/table/ExtensionStoreTable.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/model/table/ExtensionStoreTable.kt
index 1c638b437..84de416f5 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/model/table/ExtensionStoreTable.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/model/table/ExtensionStoreTable.kt
@@ -10,7 +10,7 @@ package suwayomi.tachidesk.manga.model.table
 import org.jetbrains.exposed.v1.core.dao.id.IntIdTable
 
 object ExtensionStoreTable : IntIdTable() {
-    val indexUrl = varchar("index_url", 2048)
+    val indexUrl = varchar("index_url", 2048).uniqueIndex()
     val name = varchar("name", 256)
     val badgeLabel = varchar("badge_label", 32)
     val signingKey = varchar("signing_key", 512)
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0058_AddExtensionStore.kt b/server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0058_AddExtensionStore.kt
index f498be1f0..dd4ba1af2 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0058_AddExtensionStore.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/server/database/migration/M0058_AddExtensionStore.kt
@@ -14,7 +14,7 @@ import org.jetbrains.exposed.v1.core.dao.id.IntIdTable
 @Suppress("ClassName", "unused")
 class M0058_AddExtensionStore : AddTableMigration() {
     private class ExtensionStoreTable : IntIdTable() {
-        val indexUrl = varchar("index_url", 2048)
+        val indexUrl = varchar("index_url", 2048).uniqueIndex()
         val name = varchar("name", 256)
         val badgeLabel = varchar("badge_label", 32)
         val signingKey = varchar("signing_key", 512)