diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 939a83d992..41218de4fe 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -194,7 +194,7 @@ qemuFindAgentConfig(virDomainDefPtr def)
         if (channel->targetType != VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO)
             continue;
 
-        if (STREQ(channel->target.name, "org.qemu.guest_agent.0")) {
+        if (STREQ_NULLABLE(channel->target.name, "org.qemu.guest_agent.0")) {
             config = &channel->source;
             break;
         }