diff --git a/ghostscript.spec b/ghostscript.spec
index a7a9c38..bf67d34 100644
--- a/ghostscript.spec
+++ b/ghostscript.spec
@@ -2,7 +2,7 @@
 
 Name:          ghostscript
 Version:       9.18
-Release:       1mamba
+Release:       2mamba
 Summary:       The GPL release of the Ghostscript interpreter
 Group:         Applications/Publishing
 Vendor:        openmamba
@@ -101,9 +101,11 @@ X11 support library for Ghostscript.
 
 %prep
 %setup -q
+#-D -T
 #%patch0 -p1
 
 %build
+#:<< _EOF
 FONTPATH=
 for path in \
    %{_datadir}/cups/fonts \
@@ -153,6 +155,8 @@ cd ijs
 %makeinstall
 cd ..
 
+install -m0644 base/gserrors.h %{buildroot}%{_includedir}/ghostscript/
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -237,6 +241,9 @@ cd ..
 %{_libdir}/ghostscript/*/X11.so
 
 %changelog
+* Sun Nov 29 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 9.18-2mamba
+- install required include gserrors.h
+
 * Mon Oct 05 2015 Automatic Build System <autodist@mambasoft.it> 9.18-1mamba
 - automatic version update by autodist