diff --git a/src/framework/ddim.cc b/src/framework/ddim.cpp
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rename from src/framework/ddim.cc
rename to src/framework/ddim.cpp
diff --git a/src/framework/lod_tensor.cc b/src/framework/lod_tensor.cpp
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rename from src/framework/lod_tensor.cc
rename to src/framework/lod_tensor.cpp
diff --git a/src/framework/scope.cc b/src/framework/scope.cpp
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rename from src/framework/scope.cc
rename to src/framework/scope.cpp
diff --git a/src/framework/tensor_util.cc b/src/framework/tensor_util.cpp
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rename from src/framework/tensor_util.cc
rename to src/framework/tensor_util.cpp
diff --git a/src/memory/t_malloc.cc b/src/memory/t_malloc.cpp
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rename from src/memory/t_malloc.cc
rename to src/memory/t_malloc.cpp
diff --git a/src/operators/math/im2col.cc b/src/operators/math/im2col.cpp
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rename from src/operators/math/im2col.cc
rename to src/operators/math/im2col.cpp
diff --git a/src/operators/math/math_function.cc b/src/operators/math/math_function.cpp
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rename from src/operators/math/math_function.cc
rename to src/operators/math/math_function.cpp
diff --git a/src/operators/math/vol2col.cc b/src/operators/math/vol2col.cpp
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rename from src/operators/math/vol2col.cc
rename to src/operators/math/vol2col.cpp