diff --git a/bin/kill_gtk3 b/bin/kill_gtk3
new file mode 100755
index 0000000..8e59602
--- /dev/null
+++ b/bin/kill_gtk3
@@ -0,0 +1,27 @@
+#!/usr/bin/python2
+
+from entropy.server.interfaces import Server
+
+srv = Server()
+bad_pkgs = []
+dep_cache = set()
+
+gtk2_match = srv.atom_match("x11-libs/gtk+:2")
+gtk3_match = srv.atom_match("x11-libs/gtk+:3")
+
+for repo_id in srv.repositories():
+    repo = srv.open_repository(repo_id)
+    for pkg_id in repo.listAllPackageIds():
+        deps = [x for x in repo.retrieveDependencies(pkg_id) if x not in dep_cache]
+        dep_cache.update(deps)
+        for dep in deps:
+            matches, rc = srv.atom_match(dep, multi_match=True, multi_repo=True)
+            if gtk3_match in matches:
+                if gtk2_match in matches:
+                    bad_pkgs.append((pkg_id, repo_id))
+                    print("found bad package: %s" % (repo.retrieveAtom(pkg_id),))
+
+for pkg_id, repo_id in bad_pkgs:
+    print(srv.open_repository(repo_id).retrieveKeySlotAggregated(pkg_id))
+
+srv.shutdown()