diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index 413c261311a7..9440885639e9 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,7 @@
+2005-04-12  Richard Henderson  <rth@redhat.com>
+
+	* include/private/gcconfig.h (alpha-linux): Use LINUX_STACKBOTTOM.
+
 2005-03-23  Mike Stump  <mrs@apple.com>
 
 	* darwin_stop_world.c: Update for -m64 multilib.
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index fbabdedd7728..7f3b63e4a2cf 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -1550,7 +1550,7 @@
 #   endif
 #   ifdef LINUX
 #       define OS_TYPE "LINUX"
-#       define STACKBOTTOM ((ptr_t) 0x120000000)
+#       define LINUX_STACKBOTTOM
 #       ifdef __ELF__
 #	  define SEARCH_FOR_DATA_START
 #         define DYNAMIC_LOADING