diff --git a/include/ylt/metric/detail/ckms_quantiles.hpp b/include/ylt/metric/detail/ckms_quantiles.hpp
index b56b6167e..051ef8e35 100644
--- a/include/ylt/metric/detail/ckms_quantiles.hpp
+++ b/include/ylt/metric/detail/ckms_quantiles.hpp
@@ -50,7 +50,7 @@ class CKMSQuantiles {
     compress();
 
     if (sample_.empty()) {
-      return std::numeric_limits<double>::quiet_NaN();
+      return 0;
     }
 
     int rankMin = 0;