diff --git a/bfps/cpp/full_code/postprocess.cpp b/bfps/cpp/full_code/postprocess.cpp
index b7193bee9e1f48ed24c9ebf395aa709411ddea4e..cb04a030123f3f5ecaa501ca11b22511d1a8ca84 100644
--- a/bfps/cpp/full_code/postprocess.cpp
+++ b/bfps/cpp/full_code/postprocess.cpp
@@ -34,9 +34,7 @@ int postprocess::main_loop(void)
 int postprocess::read_parameters()
 {
     hid_t parameter_file;
-    hid_t dset, memtype, space;
     char fname[256];
-    char *string_data;
     sprintf(fname, "%s.h5", this->simname.c_str());
     parameter_file = H5Fopen(fname, H5F_ACC_RDONLY, H5P_DEFAULT);
     this->dealias_type = hdf5_tools::read_value<int>(