diff --git a/k3b.spec b/k3b.spec
index 6895abf..d067234 100644
--- a/k3b.spec
+++ b/k3b.spec
@@ -137,7 +137,22 @@ CXXFLAGS="%{optflags} -fno-strict-aliasing"
 %kf5_makeinstall -C build
 %if %{with lang}
   %find_lang %{name} --with-man --all-name
+  %if 0%{?suse_version} > 1320 || 0%{?sle_version} >= 120300
   %kf5_find_htmldocs
+  %else
+  # %%kf5_find_htmldocs is only defined since Leap 42.3
+  CURDIR=`pwd`
+  pushd %{buildroot}%{_kf5_htmldir}
+  for i in *; do
+    if ! [ -d "/usr/share/locale/${i}" ]; then
+        echo "Removing unsupported translation %{_kf5_htmldir}/${i}"
+        rm -rf "$i"
+    elif [ "$i" != "en" ]; then
+        echo "%doc %lang($i) %{_kf5_htmldir}/${i}" >> $CURDIR/%{name}.lang
+    fi
+  done
+  popd
+  %endif
 %endif
 
 %suse_update_desktop_file -r org.kde.k3b Qt KDE AudioVideo DiscBurning