diff -r 881ab7ae15a6 -r 9b1cbc665851 src/html.cpp
--- a/src/html.cpp	Sun Aug 10 11:57:05 2025 +0200
+++ b/src/html.cpp	Sun Aug 10 11:59:03 2025 +0200
@@ -404,7 +404,9 @@
             add_summaries(summaries_json, summaries);
             summaries_json += "],";
         }
-        summaries_json.pop_back();
+        if (!commits.summaries.empty()) {
+            summaries_json.pop_back();
+        }
         summaries_json += '}';
     }