diff --git a/kvm-all.c b/kvm-all.c
index 7d4e544c5204fc41c4c809283ce2f46526b94ec2..0b87658f6a182099b1552b322e48d0f90b07653c 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1306,7 +1306,11 @@ int kvm_has_many_ioeventfds(void)
 
 int kvm_has_gsi_routing(void)
 {
+#ifdef KVM_CAP_IRQ_ROUTING
     return kvm_check_extension(kvm_state, KVM_CAP_IRQ_ROUTING);
+#else
+    return false;
+#endif
 }
 
 int kvm_allows_irq0_override(void)