diff --git a/src/lisp/Config.x86_darwin b/src/lisp/Config.x86_darwin
index c21e746c770dd2b024cb4e3a6563a96d4c42de01..03324aac97099f2dfec1a1035daf1de1b2d9fb3a 100644
--- a/src/lisp/Config.x86_darwin
+++ b/src/lisp/Config.x86_darwin
@@ -6,7 +6,7 @@ include Config.x86_common
 # you have the 10.5 SDK available.
 MIN_VER = -mmacosx-version-min=10.5
 
-CPPFLAGS += -DDARWIN $(MIN_VER) -m32 -DRELOCATABLE_STACK_START
+CPPFLAGS += -DDARWIN $(MIN_VER) -m32
 CFLAGS += -g3 -mtune=generic
 ASFLAGS += -g3 $(MIN_VER)