diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
index 6aba05ad..10c49488 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
@@ -71,6 +71,7 @@ object Extension {
     suspend fun installExternalExtension(inputStream: InputStream, apkName: String): Int {
         return installAPK {
             val savePath = "${applicationDirs.extensionsRoot}/$apkName"
+            logger.debug { "Saving apk at $apkName" }
             // download apk file
             val downloadedFile = File(savePath)
             downloadedFile.sink().buffer().use { sink ->
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/PackageTools.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/PackageTools.kt
index 40fab8dd..63708ab2 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/PackageTools.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/PackageTools.kt
@@ -141,6 +141,7 @@ object PackageTools {
      * It may return an instance of HttpSource or SourceFactory depending on the extension.
      */
     fun loadExtensionSources(jarPath: String, className: String): Any {
+        logger.debug { "loading jar with path: $jarPath" }
         val classLoader = URLClassLoader(arrayOf<URL>(URL("file:$jarPath")))
         val classToLoad = Class.forName(className, false, classLoader)
         return classToLoad.getDeclaredConstructor().newInstance()