diff --git a/include/crow/json.h b/include/crow/json.h
index 503690b2f..b51bc9986 100644
--- a/include/crow/json.h
+++ b/include/crow/json.h
@@ -1896,9 +1896,9 @@ namespace crow // NOTE: Already documented in "crow/app.h"
                             if (v.nt == num_type::Double_precision_floating_point)
                             {
 #ifdef _MSC_VER
-                                sprintf_s(outbuf, sizeof(outbuf), "%.*g", DBL_DECIMAL_DIG, v.num.d);
+                                sprintf_s(outbuf, sizeof(outbuf), "%.*g", std::numeric_limits<double>::max_digits10, v.num.d);
 #else
-                                snprintf(outbuf, sizeof(outbuf), "%.*g", DBL_DECIMAL_DIG, v.num.d);
+                                snprintf(outbuf, sizeof(outbuf), "%.*g", std::numeric_limits<double>::max_digits10, v.num.d);
 #endif
                             }
                             else