diff --git a/mace/kernels/proposal.h b/mace/kernels/proposal.h
index 897e1915704f7681615773bf970e2aac595ec9bd..d3afe966e2da1892f7fc3862fb1e49cbe14ea082 100644
--- a/mace/kernels/proposal.h
+++ b/mace/kernels/proposal.h
@@ -195,7 +195,6 @@ struct ProposalFunctor {
           proposals[sanc_idx][3] = std::max<float>(
               std::min<float>(pred_ctr_y + pred_h / 2, im_height),
               0);
-
         }
       }
     }
diff --git a/mace/kernels/psroi_align.h b/mace/kernels/psroi_align.h
index 9d6f43118ad3dd6cc947a2d92d73518abe97ac7f..57e19c3c0a8fd297a46f9b47d2a2ff83e7dd0afe 100644
--- a/mace/kernels/psroi_align.h
+++ b/mace/kernels/psroi_align.h
@@ -5,6 +5,9 @@
 #ifndef MACE_KERNELS_PSROI_ALIGN_H_
 #define MACE_KERNELS_PSROI_ALIGN_H_
 
+#include <algorithm>
+#include <vector>
+
 #include "mace/core/future.h"
 #include "mace/core/tensor.h"
 #include "mace/public/mace.h"
@@ -169,7 +172,7 @@ struct PSROIAlignFunctor {
   const int group_size_;
 };
 
-}  //  namepsace kernels
-}  //  namespace mace
+}  // namespace kernels
+}  // namespace mace
 
-#endif  //  MACE_KERNELS_PSROI_ALIGN_H_
+#endif  // MACE_KERNELS_PSROI_ALIGN_H_
diff --git a/mace/ops/proposal_test.cc b/mace/ops/proposal_test.cc
index 11eb7a49b94a5543c5f70ebea954763dcbbabac4..94203deb4b82bc1a1d2d96e3a122e6856f0ce109 100644
--- a/mace/ops/proposal_test.cc
+++ b/mace/ops/proposal_test.cc
@@ -4,7 +4,6 @@
 
 #include "mace/core/operator.h"
 #include "mace/ops/ops_test_util.h"
-#include <fstream>
 
 namespace mace {
 namespace ops {
@@ -54,7 +53,6 @@ TEST_F(ProposalOpTest, CPUSimple) {
   auto expected_tensor = CreateTensor<float>({1, 1, 1, 5}, {0, 0, 0, 255, 255});
 
   ExpectTensorNear<float>(*expected_tensor, *net.GetTensor("Output"), 1e-5);
-
 }
 
 
diff --git a/mace/ops/psroi_align.h b/mace/ops/psroi_align.h
index c81674205822d16d793cf94f98bea6556c227d6f..e134b4a43cb78022895ee62a7b3ccfde3c5e110d 100644
--- a/mace/ops/psroi_align.h
+++ b/mace/ops/psroi_align.h
@@ -38,7 +38,7 @@ class PSROIAlignOp : public Operator<D, T> {
   OP_OUTPUT_TAGS(OUTPUT);
 };
 
-} // namespace ops
-} // namespace mace
+}  // namespace ops
+}  // namespace mace
 
-#endif //  MACE_OPS_PSROI_ALIGN_H_
+#endif  // MACE_OPS_PSROI_ALIGN_H_