diff --git a/open-vm-tools.spec b/open-vm-tools.spec
index 12fbc70..c24bf01 100644
--- a/open-vm-tools.spec
+++ b/open-vm-tools.spec
@@ -77,7 +77,7 @@ ExclusiveArch:  %ix86 x86_64
 Requires:       vmware-guest-kmp
 Supplements:    modalias(pci:v000015ADd*sv*sd*bc*sc*i*)
 
-%define vm_modules %{mod1130} %{mod1120}
+%define vm_modules "" %{?mod1130} %{?mod1120} 
 
 %suse_kernel_module_package -n vmware-guest -p %{SOURCE98} xen um