diff --git a/AUTHORS b/AUTHORS
index 2ef99a642..76344452c 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -88,4 +88,5 @@ suggestions:
   Bryce Harrington
   Stefan Hacker
   Alan Barton
+  Uli Martens
 
diff --git a/src/columns/ColDescription.cpp b/src/columns/ColDescription.cpp
index 0fcbd46bf..c68302a48 100644
--- a/src/columns/ColDescription.cpp
+++ b/src/columns/ColDescription.cpp
@@ -25,6 +25,7 @@
 //
 ////////////////////////////////////////////////////////////////////////////////
 
+#include <stdlib.h>
 #include <Context.h>
 #include <Nibbler.h>
 #include <Date.h>