diff --git a/py/objstr.c b/py/objstr.c
index 6a2f295..a6ee617 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -1923,9 +1923,9 @@
     { MP_ROM_QSTR(MP_QSTR_partition), MP_ROM_PTR(&str_partition_obj) },
     { MP_ROM_QSTR(MP_QSTR_rpartition), MP_ROM_PTR(&str_rpartition_obj) },
     #endif
-#if MICROPY_PY_BUILTINS_STR_CENTER
+    #if MICROPY_PY_BUILTINS_STR_CENTER
     { MP_ROM_QSTR(MP_QSTR_center), MP_ROM_PTR(&str_center_obj) },
-#endif
+    #endif
     { MP_ROM_QSTR(MP_QSTR_lower), MP_ROM_PTR(&str_lower_obj) },
     { MP_ROM_QSTR(MP_QSTR_upper), MP_ROM_PTR(&str_upper_obj) },
     { MP_ROM_QSTR(MP_QSTR_isspace), MP_ROM_PTR(&str_isspace_obj) },
diff --git a/py/objstrunicode.c b/py/objstrunicode.c
index 7b50dfe..8444a26 100644
--- a/py/objstrunicode.c
+++ b/py/objstrunicode.c
@@ -250,9 +250,9 @@
     { MP_ROM_QSTR(MP_QSTR_partition), MP_ROM_PTR(&str_partition_obj) },
     { MP_ROM_QSTR(MP_QSTR_rpartition), MP_ROM_PTR(&str_rpartition_obj) },
     #endif
-#if MICROPY_PY_BUILTINS_STR_CENTER
+    #if MICROPY_PY_BUILTINS_STR_CENTER
     { MP_ROM_QSTR(MP_QSTR_center), MP_ROM_PTR(&str_center_obj) },
-#endif
+    #endif
     { MP_ROM_QSTR(MP_QSTR_lower), MP_ROM_PTR(&str_lower_obj) },
     { MP_ROM_QSTR(MP_QSTR_upper), MP_ROM_PTR(&str_upper_obj) },
     { MP_ROM_QSTR(MP_QSTR_isspace), MP_ROM_PTR(&str_isspace_obj) },