diff --git a/re2/filtered_re2.cc b/re2/filtered_re2.cc
index 1e1cac5f7359ac3d9bee41f3bdb8c96969fff598..b60c3fe40b07bd879b7827cd8fae85fa248a4326 100644
--- a/re2/filtered_re2.cc
+++ b/re2/filtered_re2.cc
@@ -37,7 +37,6 @@ namespace re2
   public:
     PrefilterTree() : min_atom_len_(3){};
     explicit PrefilterTree(int min_atom_len) : min_atom_len_(min_atom_len){};
-    ~PrefilterTree(){};
     int getMinAtomLen()
     {
       return min_atom_len_;