diff --git a/lnbits/db.py b/lnbits/db.py
index 02a0e26c5..bd42272dc 100644
--- a/lnbits/db.py
+++ b/lnbits/db.py
@@ -79,7 +79,7 @@ class Connection(Compat):
         CLEANR = re.compile("<.*?>|&([a-z0-9]+|#[0-9]{1,6}|#x[0-9a-f]{1,6});")
 
         def cleanhtml(raw_html):
-            if type(raw_html) == str:
+            if isinstance(raw_html, str):
                 cleantext = re.sub(CLEANR, "", raw_html)
                 return cleantext
             else: