diff --git a/agistudio-1.2.3-logdecode-stdlib.patch b/agistudio-1.2.3-logdecode-stdlib.patch
new file mode 100644
index 0000000..7bb11f9
--- /dev/null
+++ b/agistudio-1.2.3-logdecode-stdlib.patch
@@ -0,0 +1,10 @@
+--- src/logdecode.cpp	2008-01-03 14:03:16.000000000 -0600
++++ src/logdecode.cpp	2008-01-03 14:03:16.000000000 -0600
+@@ -28,6 +28,7 @@
+ #include "agicommands.h"
+ 
+ #include <stdio.h>
++#include <cstdlib>
+ 
+ static int EncryptionStart;
+ static int MessageSectionStart,MessageSectionEnd;
diff --git a/agistudio.spec b/agistudio.spec
index c836805..a256fe8 100644
--- a/agistudio.spec
+++ b/agistudio.spec
@@ -1,11 +1,12 @@
 Name: agistudio
 Version: 1.2.3
-Release: 4%{?dist}
+Release: 5%{?dist}
 Summary: AGI integrated development environment
 License: GPLv2+
 Group: Amusements/Games
 Source0: http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
 Source1: %{name}.desktop
+Patch0: agistudio-1.2.3-logdecode-stdlib.patch
 URL: http://agistudio.sourceforge.net/
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -20,6 +21,7 @@ is a program which allows you to view, create and edit AGI games.
 %prep
 
 %setup -q
+%patch0 -p0
 
 %build
 cd src
@@ -66,6 +68,9 @@ rm -rf %{buildroot}
 %{_datadir}/icons/hicolor/32x32/apps/agistudio.xpm
 
 %changelog
+* Thu Jan 03 2008 Jon Ciesla <limb@jcomserv.net> - 1.2.3-5
+- Fixed cstdlib include.
+
 * Thu Aug 16 2007 Jon Ciesla <limb@jcomserv.net> - 1.2.3-4
 - Corrected license tag.