diff --git a/datatypes/mcs_decimal.h b/datatypes/mcs_decimal.h
index c256500ab..e221d6dfc 100644
--- a/datatypes/mcs_decimal.h
+++ b/datatypes/mcs_decimal.h
@@ -590,12 +590,6 @@ class VDecimal: public TSInt128
         return toDouble();
     }
 
-    inline long double toLongDouble() const
-    {
-        datatypes::TFloat128 y(s128Value);
-        return static_cast<long double>(y);
-    }
-
     bool operator==(const VDecimal& rhs) const
     {
         if (isTSInt128ByPrecision() && rhs.isTSInt128ByPrecision())
diff --git a/datatypes/mcs_int128.h b/datatypes/mcs_int128.h
index e923b2e1c..c458589d2 100644
--- a/datatypes/mcs_int128.h
+++ b/datatypes/mcs_int128.h
@@ -185,7 +185,7 @@ class TSInt128
       return toDouble();
     }
 
-    inline long double toDouble() const
+    inline double toDouble() const
     {
       return static_cast<double>(s128Value);
     }