diff --git a/src/server/campaignd/addon_utils.cpp b/src/server/campaignd/addon_utils.cpp
index d96714f83b3..b74ed9bfa0d 100644
--- a/src/server/campaignd/addon_utils.cpp
+++ b/src/server/campaignd/addon_utils.cpp
@@ -96,7 +96,7 @@ std::string format_addon_feedback_url(const std::string& format, const config& p
 void support_translation(config& addon, const std::string& locale_id)
 {
 	config* locale = addon.find_child("translation", "language", locale_id).ptr();
-	if(locale) {
+	if(!locale) {
 		locale = &addon.add_child("translation");
 		(*locale)["language"] = locale_id;
 	}