diff --git a/include/etl/basic_format_spec.h b/include/etl/basic_format_spec.h
index 5c585d85..2c1f92be 100644
--- a/include/etl/basic_format_spec.h
+++ b/include/etl/basic_format_spec.h
@@ -215,6 +215,7 @@ namespace etl
       , boolalpha_(false)
       , show_base_(false)
       , fill_(typename TString::value_type(' '))
+      , scientific_(false)
     {
     }
 
@@ -222,7 +223,7 @@ namespace etl
     /// Constructor.
     //***************************************************************************
     ETL_CONSTEXPR basic_format_spec(uint_least8_t base__, uint_least8_t width__, uint_least8_t precision__, bool upper_case__, bool left_justified__,
-                                bool boolalpha__, bool show_base__, typename TString::value_type fill__) ETL_NOEXCEPT
+                                bool boolalpha__, bool show_base__, typename TString::value_type fill__, bool scientific__ = false) ETL_NOEXCEPT
       : base_(base__)
       , width_(width__)
       , precision_(precision__)
@@ -231,6 +232,7 @@ namespace etl
       , boolalpha_(boolalpha__)
       , show_base_(show_base__)
       , fill_(fill__)
+      , scientific_(scientific__)
     {
     }
 
@@ -246,7 +248,8 @@ namespace etl
       left_justified_ = false;
       boolalpha_      = false;
       show_base_      = false;
-      fill_           = typename TString::value_type(' ');
+      scientific      = false;
+      fill_ = typename TString::value_type(' ');
     }
 
     //***************************************************************************
@@ -560,6 +563,33 @@ namespace etl
       return boolalpha_;
     }
 
+    //***************************************************************************
+    /// Sets the scientific flag.
+    /// \return A reference to the basic_format_spec.
+    //***************************************************************************
+    ETL_CONSTEXPR14 basic_format_spec& scientific(bool b) ETL_LVALUE_REF_QUALIFIER ETL_NOEXCEPT
+    {
+      scientific_ = b;
+      return *this;
+    }
+
+#if ETL_USING_CPP11
+    /// @overload
+    ETL_CONSTEXPR14 basic_format_spec&& scientific(bool b) ETL_RVALUE_REF_QUALIFIER ETL_NOEXCEPT
+    {
+      scientific_ = b;
+      return etl::move(*this);
+    }
+#endif
+
+    //***************************************************************************
+    /// Gets the scientific flag.
+    //***************************************************************************
+    ETL_CONSTEXPR bool is_scientific() const ETL_NOEXCEPT
+    {
+      return scientific_;
+    }
+
     //***************************************************************************
     /// Equality operator.
     //***************************************************************************
@@ -588,6 +618,7 @@ namespace etl
     bool                         boolalpha_;
     bool                         show_base_;
     typename TString::value_type fill_;
+    bool                         scientific_;
   };
 } // namespace etl