diff --git a/thrift/compiler/lib/const_util.h b/thrift/compiler/generate/const_util.h
similarity index 98%
rename from thrift/compiler/lib/const_util.h
rename to thrift/compiler/generate/const_util.h
index 37554c71de9..de88e348d81 100644
--- a/thrift/compiler/lib/const_util.h
+++ b/thrift/compiler/generate/const_util.h
@@ -129,12 +129,12 @@ folly::void_t<decltype(std::declval<T>().toThrift())> hydrate_const(
     T& out, const t_const_value& val) {
   hydrate_const(out.toThrift(), val);
 }
-void hydrate_const(protocol::Value& out, const t_const_value& val) {
+inline void hydrate_const(protocol::Value& out, const t_const_value& val) {
   typename protocol::Value::__fbthrift_cpp2_type inner;
   hydrate_const(inner, val);
   out = protocol::Value(std::move(inner));
 }
-void hydrate_const(protocol::Object& out, const t_const_value& val) {
+inline void hydrate_const(protocol::Object& out, const t_const_value& val) {
   typename protocol::Object::__fbthrift_cpp2_type inner;
   hydrate_const(inner, val);
   out = protocol::Object(std::move(inner));
diff --git a/thrift/compiler/generate/t_ast_generator.cc b/thrift/compiler/generate/t_ast_generator.cc
index f68295e1326..c59a98730e0 100644
--- a/thrift/compiler/generate/t_ast_generator.cc
+++ b/thrift/compiler/generate/t_ast_generator.cc
@@ -25,8 +25,8 @@
 #include <thrift/compiler/ast/t_include.h>
 #include <thrift/compiler/ast/t_type.h>
 #include <thrift/compiler/detail/pluggable_functions.h>
+#include <thrift/compiler/generate/const_util.h>
 #include <thrift/compiler/generate/t_generator.h>
-#include <thrift/compiler/lib/const_util.h>
 #include <thrift/compiler/lib/schematizer.h>
 
 #include <folly/compression/Compression.h>
diff --git a/thrift/compiler/test/const_util_test.cc b/thrift/compiler/test/const_util_test.cc
index 7bc432c2cfd..9e5a38968a6 100644
--- a/thrift/compiler/test/const_util_test.cc
+++ b/thrift/compiler/test/const_util_test.cc
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include <thrift/compiler/lib/const_util.h>
+#include <thrift/compiler/generate/const_util.h>
 
 #include <folly/portability/GTest.h>
 #include <thrift/compiler/test/gen-cpp2/const_util_test_types.h>