diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 5ac4f011f9..425e3c3710 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -17649,7 +17649,11 @@ virDomainDiskByName(virDomainDefPtr def,
                     bool allow_ambiguous)
 {
     int idx = virDomainDiskIndexByName(def, name, allow_ambiguous);
-    return idx < 0 ? NULL : def->disks[idx];
+
+    if (idx < 0)
+        return NULL;
+
+    return def->disks[idx];
 }