diff --git a/parser/caffe/caffe_parser.cc b/parser/caffe/caffe_parser.cc
index 157f33f..fe5086f 100644
--- a/parser/caffe/caffe_parser.cc
+++ b/parser/caffe/caffe_parser.cc
@@ -203,11 +203,9 @@ const int32_t kAnchorIndexTwo = 2;
 const int32_t kAnchorIndexThree = 3;
 const int32_t kNumOne = 1;
 const size_t kTensorNum = 2;
-const int kMaxParseDepth = 5;
 const int32_t kMinLineWorldSize = 3;
 const int32_t kMaxIdentifier = 536870911; // 2^29 - 1
 const int32_t kBase = 10;
-const uint32_t kInteval = 2;
 const char *const kPython = "Python";
 const char *const kProposalLayer = "ProposalLayer";
 const char *const kDetectionOutput = "DetectionOutput";