diff --git a/ghc-rpm-macros.spec b/ghc-rpm-macros.spec
index 9dd5365..314c8d0 100644
--- a/ghc-rpm-macros.spec
+++ b/ghc-rpm-macros.spec
@@ -162,6 +162,9 @@ EOF
 
 
 %changelog
+* Wed Aug  2 2017 Jens Petersen <petersen@redhat.com>
+- ghc_gen_filelists: check package.conf exists
+
 * Sun Jul 30 2017 Jens Petersen <petersen@redhat.com> - 1.6.20-2
 - make package noarch again for f27
 
diff --git a/macros.ghc b/macros.ghc
index 257bcad..a64b865 100644
--- a/macros.ghc
+++ b/macros.ghc
@@ -73,6 +73,10 @@ LDFLAGS="${LDFLAGS:-%{?__global_ldflags}}"; export LDFLAGS\
 %define pkgnamever %{pkgname}-%{pkgver}\
 %define basepkg %{?ghc_name}%{!?ghc_name:ghc}-%{pkgname}\
 %define docdir %{ghclibdocdir}/%{pkgnamever}\
+if [ ! -f "%{ghclibdir}/package.conf.d/%{pkgnamever}*.conf" ]; then\
+echo "%{ghclibdir}/package.conf.d/%{pkgnamever}*.conf not found"\
+exit 1\
+fi\
 pkgconf=$(echo "%{ghclibdir}/package.conf.d/%{pkgnamever}*.conf")\
 key=$(grep "key: " %{buildroot}${pkgconf} | sed -e "s/key: //")\
 pkgdir="%{ghclibdir}/${key}"\