diff --git a/4pane.changes b/4pane.changes
index d8bc1e5..93ce259 100644
--- a/4pane.changes
+++ b/4pane.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jun 29 05:14:05 UTC 2017 - bwiedemann@suse.com
+
+- Use convert -strip to not embed timestamps in .png files
+
 -------------------------------------------------------------------
 Wed May 31 16:49:09 UTC 2017 - aloisio@gmx.com
 
diff --git a/4pane.spec b/4pane.spec
index 600e734..686b6e6 100644
--- a/4pane.spec
+++ b/4pane.spec
@@ -64,7 +64,7 @@ mkdir -vp %{buildroot}/%{_datadir}/appdata
 cd %{buildroot}/%{_datadir}/applications
 ln -s ../4Pane/rc/4Pane.desktop 4Pane.desktop
 pushd %{buildroot}%{_datadir}/icons/hicolor/48x48/apps
-convert -resize 48x48! 4Pane.png 4Pane.png
+convert -strip -resize 48x48! 4Pane.png 4Pane.png
 popd
 %fdupes -s %{buildroot}/%{_datadir}