diff --git a/Python/compile.c b/Python/compile.c
index 6ef5d5f..27274ec 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -25,8 +25,8 @@
 #include "pycore_ast.h"           // _PyAST_GetDocString()
 #include "pycore_pymem.h"         // _PyMem_IsPtrFreed()
 #include "pycore_long.h"          // _PyLong_GetZero()
+#include "pycore_symtable.h"      // PySTEntryObject
 
-#include "symtable.h"             // struct symtable
 #define NEED_OPCODE_JUMP_TABLES
 #include "opcode.h"               // EXTENDED_ARG
 #include "wordcode_helpers.h"     // instrsize()
@@ -394,7 +394,7 @@ PyAST_CompileObject(mod_ty mod, PyObject *filename, PyCompilerFlags *flags,
         goto finally;
     }
 
-    c.c_st = PySymtable_BuildObject(mod, filename, c.c_future);
+    c.c_st = _PySymtable_Build(mod, filename, c.c_future);
     if (c.c_st == NULL) {
         if (!PyErr_Occurred())
             PyErr_SetString(PyExc_SystemError, "no symtable");
@@ -428,7 +428,7 @@ static void
 compiler_free(struct compiler *c)
 {
     if (c->c_st)
-        PySymtable_Free(c->c_st);
+        _PySymtable_Free(c->c_st);
     if (c->c_future)
         PyObject_Free(c->c_future);
     Py_XDECREF(c->c_filename);
@@ -729,7 +729,7 @@ compiler_set_qualname(struct compiler *c)
             mangled = _Py_Mangle(parent->u_private, u->u_name);
             if (!mangled)
                 return 0;
-            scope = PyST_GetScope(parent->u_ste, mangled);
+            scope = _PyST_GetScope(parent->u_ste, mangled);
             Py_DECREF(mangled);
             assert(scope != GLOBAL_IMPLICIT);
             if (scope == GLOBAL_EXPLICIT)
@@ -1920,10 +1920,10 @@ get_ref_type(struct compiler *c, PyObject *name)
     if (c->u->u_scope_type == COMPILER_SCOPE_CLASS &&
         _PyUnicode_EqualToASCIIString(name, "__class__"))
         return CELL;
-    scope = PyST_GetScope(c->u->u_ste, name);
+    scope = _PyST_GetScope(c->u->u_ste, name);
     if (scope == 0) {
         PyErr_Format(PyExc_SystemError,
-                     "PyST_GetScope(name=%R) failed: "
+                     "_PyST_GetScope(name=%R) failed: "
                      "unknown scope in unit %S (%R); "
                      "symbols: %R; locals: %R; globals: %R",
                      name,
@@ -3608,7 +3608,7 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
 
     op = 0;
     optype = OP_NAME;
-    scope = PyST_GetScope(c->u->u_ste, mangled);
+    scope = _PyST_GetScope(c->u->u_ste, mangled);
     switch (scope) {
     case FREE:
         dict = c->u->u_freevars;