diff --git a/src/device.c b/src/device.c
index 83a794e..5506bc9 100644
--- a/src/device.c
+++ b/src/device.c
@@ -2655,6 +2655,9 @@
 	char *str = NULL;
 	int len;
 
+	if (device_address_is_private(device))
+		return NULL;
+
 	snprintf(filename, PATH_MAX, STORAGEDIR "/%s/cache/%s", local, peer);
 
 	key_file = g_key_file_new();