diff --git a/compiler/cpp/src/generate/t_cpp_generator.cc b/compiler/cpp/src/generate/t_cpp_generator.cc
index a92be52..d5f2baf 100644
--- a/compiler/cpp/src/generate/t_cpp_generator.cc
+++ b/compiler/cpp/src/generate/t_cpp_generator.cc
@@ -574,10 +574,10 @@
 
   if (tstruct->has_fingerprint()) {
     out <<
-      indent() << stat << "char* " << nspace
+      indent() << stat << "const char* " << nspace
         << "ascii_fingerprint" << comment << "= \"" <<
         tstruct->get_ascii_fingerprint() << "\";" << endl <<
-      indent() << stat << "uint8_t " << nspace <<
+      indent() << stat << "const uint8_t " << nspace <<
         "binary_fingerprint[" << t_type::fingerprint_len << "]" << comment << "= {";
     char* comma = "";
     for (int i = 0; i < t_type::fingerprint_len; i++) {
diff --git a/lib/cpp/src/TReflectionLocal.h b/lib/cpp/src/TReflectionLocal.h
index 3fe7c63..8e39117 100644
--- a/lib/cpp/src/TReflectionLocal.h
+++ b/lib/cpp/src/TReflectionLocal.h
@@ -59,7 +59,7 @@
   }
 
   TypeSpec(TType ttype,
-           uint8_t* fingerprint,
+           const uint8_t* fingerprint,
            FieldMeta* metas,
            TypeSpec** specs) :
     ttype(ttype)