diff --git a/src/hdmf/term_set.py b/src/hdmf/term_set.py
index b80f5c403..fbdb7d2f3 100644
--- a/src/hdmf/term_set.py
+++ b/src/hdmf/term_set.py
@@ -66,12 +66,12 @@ def _repr_html_(self):
re = "" + "Schema Path: " + "" + self.term_schema_path + "
"
re += "" + "Sources: " + "" + ", ".join(list(self.sources.keys())) + "
"
re += " Terms: "
- re += "