diff --git a/docker/attributes.sh b/docker/attributes.sh
index 95a1c8c..8c4c8b1 100755
--- a/docker/attributes.sh
+++ b/docker/attributes.sh
@@ -23,7 +23,7 @@ export CONFIG_GOOGLE_DOMAIN="${CONFIG_GOOGLE_DOMAIN:-"com"}"
 export CONFIG_GOOGLE_LANGUAGE_SITE="${CONFIG_GOOGLE_LANGUAGE_SITE:-"en"}"
 export CONFIG_GOOGLE_LANGUAGE_RESULTS="${CONFIG_GOOGLE_LANGUAGE_RESULTS:-"en"}"
 export CONFIG_GOOGLE_NUMBER_OF_RESULTS="${CONFIG_GOOGLE_NUMBER_OF_RESULTS:-"10"}"
-export CONFIG_INSTANCE_FALLBACK="${CONFIG_INSTANCE_FALLBACK}:-true}"
+export CONFIG_INSTANCE_FALLBACK="${CONFIG_INSTANCE_FALLBACK:-true}"
 export CONFIG_INVIDIOUS_INSTANCE="${CONFIG_INVIDIOUS_INSTANCE:-"invidious.snopyta.org"}"
 export CONFIG_HIDDEN_SERVICE_SEARCH=${CONFIG_HIDDEN_SERVICE_SEARCH:-false}
 export CONFIG_DISABLE_BITTORRENT_SEARCH=${CONFIG_DISABLE_BITTORRENT_SEARCH:-false}