diff --git a/browser/metro/Makefile.in b/browser/metro/Makefile.in
index 948797992c42..d24a53f55c1e 100644
--- a/browser/metro/Makefile.in
+++ b/browser/metro/Makefile.in
@@ -11,7 +11,6 @@ ifdef MOZILLA_OFFICIAL
 DEFINES += -DMOZILLA_OFFICIAL
 endif
 
-GRE_MILESTONE := $(shell tail -n 1 $(topsrcdir)/config/milestone.txt 2>/dev/null || tail -1 $(topsrcdir)/config/milestone.txt)
 GRE_BUILDID := $(shell cat $(DEPTH)/config/buildid)
 DEFINES += -DGRE_MILESTONE=$(GRE_MILESTONE) -DGRE_BUILDID=$(GRE_BUILDID)
 
diff --git a/toolkit/xre/Makefile.in b/toolkit/xre/Makefile.in
index 959c98a4f305..e8b609f6840b 100644
--- a/toolkit/xre/Makefile.in
+++ b/toolkit/xre/Makefile.in
@@ -167,7 +167,6 @@ ifdef MOZ_SOURCE_STAMP
 
 endif # MOZ_SOURCE_STAMP
 
-GRE_MILESTONE := $(strip $(lastword $(shell cat $(milestone_txt) 2>/dev/null)))
 GRE_BUILDID   := $(strip $(firstword $(shell cat $(DEPTH)/config/buildid 2>/dev/null)))
 $(call errorIfEmpty,GRE_MILESTONE GRE_BUILDID)
 
diff --git a/webapprt/Makefile.in b/webapprt/Makefile.in
index 2453d0bbd833..388f8d7d4abc 100644
--- a/webapprt/Makefile.in
+++ b/webapprt/Makefile.in
@@ -21,7 +21,6 @@ endif
 libs:: $(call mkdir_deps,$(FINAL_TARGET))
 	$(call py_action,buildlist,$(FINAL_TARGET)/chrome.manifest "resource webapprt ./")
 
-GRE_MILESTONE := $(shell tail -n 1 $(topsrcdir)/config/milestone.txt 2>/dev/null || tail -1 $(topsrcdir)/config/milestone.txt)
 GRE_BUILDID := $(shell cat $(DEPTH)/config/buildid)
 DEFINES += -DGRE_MILESTONE=$(GRE_MILESTONE) \
            -DGRE_BUILDID=$(GRE_BUILDID) \
diff --git a/xulrunner/installer/Makefile.in b/xulrunner/installer/Makefile.in
index 645846516c85..52ecf057e8e5 100644
--- a/xulrunner/installer/Makefile.in
+++ b/xulrunner/installer/Makefile.in
@@ -94,7 +94,6 @@ GARBAGE += debian/changelog
 
 DEBDESTDIR=debian/$(MOZ_BUILD_APP)
 
-GRE_MILESTONE = $(shell $(PYTHON) $(topsrcdir)/config/printconfigsetting.py $(LIBXUL_DIST)/bin/platform.ini Build Milestone)
 GRE_BUILDID = $(shell $(PYTHON) $(topsrcdir)/config/printconfigsetting.py $(LIBXUL_DIST)/bin/platform.ini Build BuildID)
 MOZ_DEB_TIMESTAMP = "$(shell date  +"%a, %d  %b %Y %T %z" )"