diff --git a/createrepo_c.changes b/createrepo_c.changes
index d50eea0..60b673e 100644
--- a/createrepo_c.changes
+++ b/createrepo_c.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jul  5 11:03:23 UTC 2016 - jengelh@inai.de
+
+- Run fdupes to eliminate duplicate .js files
+
 -------------------------------------------------------------------
 Mon Feb  1 04:49:43 UTC 2016 - ngompa13@gmail.com
 
diff --git a/createrepo_c.spec b/createrepo_c.spec
index 54d6132..92fa4ed 100644
--- a/createrepo_c.spec
+++ b/createrepo_c.spec
@@ -38,6 +38,7 @@ BuildRequires:  bash-completion-devel
 %endif
 
 BuildRequires:  cmake
+BuildRequires:  fdupes
 BuildRequires:  doxygen
 BuildRequires:  file-devel
 BuildRequires:  glib2-devel >= 2.22.0
@@ -107,6 +108,7 @@ popd
 pushd ./build
 %make_install
 popd
+%fdupes %buildroot/%_prefix
 
 %post -n %{libname} -p /sbin/ldconfig