diff --git a/gmlc/utilities/string_viewConversion.h b/gmlc/utilities/string_viewConversion.h
index 14e0355..93c6ce3 100644
--- a/gmlc/utilities/string_viewConversion.h
+++ b/gmlc/utilities/string_viewConversion.h
@@ -120,7 +120,7 @@ namespace utilities {
         x3::parse(V.cbegin(), V.cend(), x3::double_, retVal);
         return retVal;
 #else
-        return std::stod(V.to_string());
+        return std::stod(std::string(V.data(), V.length()));
 #endif
     }
 
@@ -133,7 +133,7 @@ namespace utilities {
         x3::parse(V.cbegin(), V.cend(), x3::float_, retVal);
         return retVal;
 #else
-        return std::stof(V.to_string());
+        return std::stof(std::string(V.data(), V.length()));
 #endif
     }