diff --git a/src/node/serialization.cc b/src/node/serialization.cc
index d270e72d3958..cb310eb2cda9 100644
--- a/src/node/serialization.cc
+++ b/src/node/serialization.cc
@@ -167,7 +167,11 @@ class JSONAttrGetter : public AttrVisitor {
   ReflectionVTable* reflection_ = ReflectionVTable::Global();
 
   void Visit(const char* key, double* value) final {
-    node_->attrs[key] = std::to_string(*value);
+    std::ostringstream s;
+    // Type <double> have approximately 16 decimal digits
+    s.precision(16);
+    s << (*value);
+    node_->attrs[key] = s.str();
   }
   void Visit(const char* key, int64_t* value) final {
     node_->attrs[key] = std::to_string(*value);