diff --git a/browser/installer/windows/Makefile.in b/browser/installer/windows/Makefile.in
index e405e9caca3d..0cc44cd5e9fa 100644
--- a/browser/installer/windows/Makefile.in
+++ b/browser/installer/windows/Makefile.in
@@ -5,7 +5,11 @@
 include $(topsrcdir)/toolkit/mozapps/installer/package-name.mk
 
 CONFIG_DIR = instgen
-SFX_MODULE = $(topsrcdir)/other-licenses/7zstub/firefox/7zSD.sfx
+ifeq ($(CPU_ARCH), aarch64)
+SFX_MODULE = $(topsrcdir)/other-licenses/7zstub/firefox/7zSD.ARM64.sfx
+else
+SFX_MODULE = $(topsrcdir)/other-licenses/7zstub/firefox/7zSD.Win32.sfx
+endif
 
 INSTALLER_FILES = \
 	app.tag \
diff --git a/browser/locales/Makefile.in b/browser/locales/Makefile.in
index deac8a86a62d..8db1f71bf875 100644
--- a/browser/locales/Makefile.in
+++ b/browser/locales/Makefile.in
@@ -37,7 +37,11 @@ MOZ_PKG_MAC_ICON=$(ABS_DIST)/branding/disk.icns
 MOZ_PKG_MAC_EXTRA=--symlink '/Applications:/ '
 endif
 
-MOZ_SFX_PACKAGE=$(topsrcdir)/other-licenses/7zstub/firefox/7zSD.sfx
+ifeq ($(CPU_ARCH), aarch64)
+MOZ_SFX_PACKAGE=$(topsrcdir)/other-licenses/7zstub/firefox/7zSD.ARM64.sfx
+else
+MOZ_SFX_PACKAGE=$(topsrcdir)/other-licenses/7zstub/firefox/7zSD.Win32.sfx
+endif
 
 # Required for l10n.mk - defines a list of app sub dirs that should
 # be included in langpack xpis.