diff --git a/ghc-rpm-macros.ghc b/ghc-rpm-macros.ghc
index e1ae941..40c43f0 100644
--- a/ghc-rpm-macros.ghc
+++ b/ghc-rpm-macros.ghc
@@ -198,6 +198,16 @@ Provides:       %{basepkg}-prof = %{pkgver}-%{release}\
 \
 This package contains the development files.
 
+# ghc_devel_post_postun
+%ghc_devel_post_postun\
+%define pkgname %{?1}%{!?1:%{pkg_name}}\
+%define basepkg ghc-%{pkgname}\
+%post -n %{basepkg}-devel\
+%ghc_pkg_recache\
+\
+%postun -n %{basepkg}-devel\
+%ghc_pkg_recache
+
 # ghc_package_devel [-c cdepslist] [-h pkgdepslist] [-l licensetag] [name] [version]
 %ghc_package_devel(c:h:l:)\
 %define pkgname %{?1}%{!?1:%{pkg_name}}\
@@ -206,11 +216,7 @@ This package contains the development files.
 \
 %ghc_devel_description\
 \
-%post -n %{basepkg}-devel\
-%ghc_pkg_recache\
-\
-%postun -n %{basepkg}-devel\
-%ghc_pkg_recache\
+%ghc_devel_post_postun\
 \
 %ghc_devel_files\
 %{nil}
diff --git a/ghc-rpm-macros.spec b/ghc-rpm-macros.spec
index 37f5916..33de798 100644
--- a/ghc-rpm-macros.spec
+++ b/ghc-rpm-macros.spec
@@ -3,7 +3,7 @@
 %global macros_file %{_sysconfdir}/rpm/macros.ghc
 
 Name:           ghc-rpm-macros
-Version:        0.15.1
+Version:        0.15.2
 Release:        1%{?dist}
 Summary:        Macros for building packages for GHC
 
@@ -59,6 +59,9 @@ EOF
 
 
 %changelog
+* Wed Dec 28 2011 Jens Petersen <petersen@redhat.com> - 0.15.2-1
+- add ghc_devel_post_postun to help koji/mock with new macros
+
 * Tue Dec 27 2011 Jens Petersen <petersen@redhat.com> - 0.15.1-1
 - add ghc_package, ghc_description, ghc_devel_package, ghc_devel_description