diff --git a/ghc-rpm-macros.spec b/ghc-rpm-macros.spec
index 08e729f..180cda7 100644
--- a/ghc-rpm-macros.spec
+++ b/ghc-rpm-macros.spec
@@ -10,7 +10,7 @@
 #%%global without_hscolour 1
 
 Name:           ghc-rpm-macros
-Version:        1.6.1
+Version:        1.6.2
 Release:        1%{?dist}
 Summary:        RPM macros for building packages for GHC
 
@@ -124,6 +124,9 @@ EOF
 
 
 %changelog
+* Mon Jun 13 2016 Jens Petersen <petersen@redhat.com> - 1.6.2-1
+- ghc_gen_filelists: uniq keyname to prevent build failure for installed version
+
 * Mon Jun  6 2016 Jens Petersen <petersen@redhat.com> - 1.6.1-1
 - disable debuginfo again until working
 
diff --git a/macros.ghc b/macros.ghc
index 8f71099..aa01fe6 100644
--- a/macros.ghc
+++ b/macros.ghc
@@ -64,7 +64,7 @@ LDFLAGS="${LDFLAGS:-%{?__global_ldflags}}"; export LDFLAGS\
 %define pkgnamever %{pkgname}-%{pkgver}\
 %define basepkg %{?ghc_name}%{!?ghc_name:ghc}-%{pkgname}\
 %define docdir %{ghclibdocdir}/%{pkgnamever}\
-keyname=$(%{_rpmconfigdir}/ghc-pkg-wrapper %{buildroot}%{ghclibdir} field %{pkgnamever} key | sed -e "s/key: //")\
+keyname=$(%{_rpmconfigdir}/ghc-pkg-wrapper %{buildroot}%{ghclibdir} field %{pkgnamever} key | sed -e "s/key: //" | uniq)\
 pkgdir="%{ghclibdir}/${keyname}"\
 rm -f %{basepkg}.files %{basepkg}-devel.files\
 touch %{basepkg}.files %{basepkg}-devel.files\