diff --git a/src/core/MoBenchmark.cpp b/src/core/MoBenchmark.cpp
index cbb1e493..8321900d 100644
--- a/src/core/MoBenchmark.cpp
+++ b/src/core/MoBenchmark.cpp
@@ -68,6 +68,7 @@ rapidjson::Value MoBenchmark::toJSON(rapidjson::Document &doc) const
     Value obj(kObjectType);
 
     for (const Algorithm a : Algorithm::all()) {
+        if (algo_perf[a.id()] == 0.0f) continue;
         obj.AddMember(StringRef(a.name()), algo_perf[a.id()], allocator);
     }