diff --git a/range.cpp b/range.cpp
index 8a7c6cd5..cf657661 100644
--- a/range.cpp
+++ b/range.cpp
@@ -114,6 +114,18 @@ cruft::range<T>::operator- (T val) const
 }
 
 
+//-----------------------------------------------------------------------------
+template <typename T>
+cruft::range<T>
+cruft::range<T>::operator+ (T val) const
+{
+    return cruft::range<T> (
+        lo + val,
+        hi + val
+    );
+}
+
+
 ///////////////////////////////////////////////////////////////////////////////
 template <typename T>
 T