diff --git a/ghostscript.spec b/ghostscript.spec
index 30982bf..27a1b63 100644
--- a/ghostscript.spec
+++ b/ghostscript.spec
@@ -146,6 +146,7 @@ rm -f $RPM_BUILD_ROOT/usr/bin/sysvlp.sh
 # Header files.
 mkdir -p $RPM_BUILD_ROOT%{_includedir}/ghostscript
 install -m0644 src/iapi.h $RPM_BUILD_ROOT%{_includedir}/ghostscript
+install -m0644 src/ierrors.h $RPM_BUILD_ROOT%{_includedir}/ghostscript
 install -m0644 src/errors.h $RPM_BUILD_ROOT%{_includedir}/ghostscript
 install -m0644 src/gdevdsp.h $RPM_BUILD_ROOT%{_includedir}/ghostscript
 
@@ -215,6 +216,9 @@ rm -rf $RPM_BUILD_ROOT
 %postun -p /sbin/ldconfig
 
 %changelog
+* Thu Jun  9 2005 Tim Waugh <twaugh@redhat.com>
+- Include ierrors.h in the devel package.
+
 * Wed Jun  8 2005 Tim Waugh <twaugh@redhat.com> 8.15-0.rc3.2
 - Drop 'Provides: libijs.so' because it is incorrect.
 - Build igcref.c with -O0 to work around bug #150771.