diff --git a/tools/mpy_ld.py b/tools/mpy_ld.py
index 0dac69e208..a0817500e6 100755
--- a/tools/mpy_ld.py
+++ b/tools/mpy_ld.py
@@ -50,7 +50,6 @@ MP_SCOPE_FLAG_VIPERRODATA = 0x20
 MP_SCOPE_FLAG_VIPERBSS = 0x40
 MICROPY_PY_BUILTINS_STR_UNICODE = 2
 MP_SMALL_INT_BITS = 31
-QSTR_WINDOW_SIZE = 32
 
 # ELF constants
 R_386_32 = 1