diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index f472fc4f697fa803dd5b196b42601e932ec1baf5..6e3a3f14a17af5ef702a3dd6d37518d326e78a77 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -104,7 +104,7 @@ bool kvm_readonly_mem_allowed;
 bool kvm_vm_attributes_allowed;
 bool kvm_msi_use_devid;
 bool kvm_csv3_allowed;
-bool kvm_has_guest_debug;
+static bool kvm_has_guest_debug;
 static int kvm_sstep_flags;
 static bool kvm_immediate_exit;
 static hwaddr kvm_max_slot_size = ~0;