diff --git a/gtsam/nonlinear/Values.h b/gtsam/nonlinear/Values.h
index 9a4c7e798..db77512e5 100644
--- a/gtsam/nonlinear/Values.h
+++ b/gtsam/nonlinear/Values.h
@@ -262,6 +262,9 @@ namespace gtsam {
     /// throws truntime error if n<1 || n>9
     void insertFixed(Key j, const Vector& v, size_t n);
 
+    /// version for double
+    void insertDouble(Key j, double c) { insert<double>(j,c); }
+
     /// overloaded insert version that also specifies a chart
     template <typename ValueType, typename Chart>
     void insert(Key j, const ValueType& val);