diff --git a/src/url-copy/main.cpp b/src/url-copy/main.cpp
index f56ead2..d5e718b 100644
--- a/src/url-copy/main.cpp
+++ b/src/url-copy/main.cpp
@@ -46,6 +46,7 @@ limitations under the License. */
 #include <iterator>
 #include <vector>
 #include <boost/algorithm/string.hpp>
+#include <boost/scoped_ptr.hpp>
 #include "common/panic.h"
 #include "version.h"