diff --git a/lib/galaxy/managers/histories.py b/lib/galaxy/managers/histories.py
index 6b1e3d256d9e..e704c3569815 100644
--- a/lib/galaxy/managers/histories.py
+++ b/lib/galaxy/managers/histories.py
@@ -207,6 +207,8 @@ def p_tag_filter(term_text: str, quoted: bool):
                 self.model_class.deleted == (true() if show_deleted else false())
             )
 
+        stmt = stmt.distinct()
+
         if include_total_count:
             total_matches = get_count(trans.sa_session, stmt)
         else: