diff --git a/src/db/UniqueTags.cxx b/src/db/UniqueTags.cxx
index a6c78509d..b9fe41899 100644
--- a/src/db/UniqueTags.cxx
+++ b/src/db/UniqueTags.cxx
@@ -22,10 +22,6 @@
 #include "song/LightSong.hxx"
 #include "tag/VisitFallback.hxx"
 
-#include <functional>
-
-#include <assert.h>
-
 static void
 CollectTags(std::set<std::string> &result,
 	    const Tag &tag,