diff --git a/mozilla/browser/installer/Makefile.in b/mozilla/browser/installer/Makefile.in
index 70f1e9538b1..d47d018bc26 100644
--- a/mozilla/browser/installer/Makefile.in
+++ b/mozilla/browser/installer/Makefile.in
@@ -58,7 +58,7 @@ include $(topsrcdir)/config/rules.mk
 
 MOZ_PKG_REMOVALS = $(srcdir)/removed-files.in
 
-ifdef BUILD_STATIC_LIBS
+ifneq (,$(BUILD_STATIC_LIBS)$(MOZ_ENABLE_LIBXUL))
 ifeq (WINNT,$(OS_ARCH))
 MOZ_PKG_MANIFEST_P = $(srcdir)/windows/packages-static
 else
@@ -67,7 +67,7 @@ MOZ_PKG_MANIFEST_P = $(srcdir)/unix/packages-static
 endif
 endif
 else
-$(error you need a "--enable-static --disable-shared" build to create an installer)
+$(error you need a "--enable-static or --enable-libxul" build to create an installer)
 endif
 
 MOZ_NONLOCALIZED_PKG_LIST = \
diff --git a/mozilla/browser/installer/unix/packages-static b/mozilla/browser/installer/unix/packages-static
index 9d5f8c99eb1..7acbc946b5e 100644
--- a/mozilla/browser/installer/unix/packages-static
+++ b/mozilla/browser/installer/unix/packages-static
@@ -35,6 +35,7 @@ bin/libxpcom.so
 bin/libxpcom_core.so
 bin/libxpistub.so
 bin/libnspr4.so
+bin/libxul.so
 bin/components/libxpinstall.so
 bin/components/libjar50.so
 
diff --git a/mozilla/browser/installer/windows/packages-static b/mozilla/browser/installer/windows/packages-static
index 668395a9099..ca3e6066bb7 100644
--- a/mozilla/browser/installer/windows/packages-static
+++ b/mozilla/browser/installer/windows/packages-static
@@ -35,6 +35,7 @@ bin\xpcom.dll
 bin\xpcom_core.dll
 bin\xpistub.dll
 bin\nspr4.dll
+bin\xul.dll
 bin\components\xpinstal.dll
 bin\components\jar50.dll
 bin\Microsoft.VC80.CRT.manifest