diff --git a/src/ccstruct/boxread.cpp b/src/ccstruct/boxread.cpp
index c7e3ad4d..11b1ecc2 100644
--- a/src/ccstruct/boxread.cpp
+++ b/src/ccstruct/boxread.cpp
@@ -43,7 +43,7 @@ static std::string BoxFileName(const char *image_filename) {
   std::string box_filename = image_filename;
   size_t length = box_filename.length();
   std::string last = (length > 8) ? box_filename.substr(length - 8) : "";
-  if (last == ".bin.png" || last == ".nrm.png") {
+  if (last == ".bin.png" || last == ".nrm.png" || last == ".raw.png") {
     box_filename.resize(length - 8);
   } else {
     size_t lastdot = box_filename.find_last_of('.');