diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index 65b22d36c1deaaee24051230929fcce4161aeb87..87c20dc050c2170a38e3ab1d04596d7f710d1664 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -286,6 +286,62 @@ qemuAssignDeviceNetAlias(virDomainDefPtr def,
 }
 
 
+static int
+qemuAssignDeviceFSAlias(virDomainFSDefPtr fss,
+                        int idx)
+{
+    return virAsprintf(&fss->info.alias, "fs%d", idx);
+}
+
+
+static int
+qemuAssignDeviceSoundAlias(virDomainSoundDefPtr sound,
+                           int idx)
+{
+    return virAsprintf(&sound->info.alias, "sound%d", idx);
+}
+
+
+static int
+qemuAssignDeviceVideoAlias(virDomainVideoDefPtr video,
+                           int idx)
+{
+    return virAsprintf(&video->info.alias, "video%d", idx);
+}
+
+
+static int
+qemuAssignDeviceHubAlias(virDomainHubDefPtr hub,
+                         int idx)
+{
+    return virAsprintf(&hub->info.alias, "hub%d", idx);
+}
+
+
+static int
+qemuAssignDeviceSmartcardAlias(virDomainSmartcardDefPtr smartcard,
+                               int idx)
+{
+    return virAsprintf(&smartcard->info.alias, "smartcard%d", idx);
+}
+
+
+static int
+qemuAssingDeviceMemballoonAlias(virDomainMemballoonDefPtr memballoon,
+                                int idx)
+{
+    return virAsprintf(&memballoon->info.alias, "balloon%d", idx);
+}
+
+
+static int
+qemuAssignDeviceTPMAlias(virDomainTPMDefPtr tpm,
+                         int idx)
+{
+    return virAsprintf(&tpm->info.alias, "tpm%d", idx);
+}
+
+
 int
 qemuAssignDeviceRedirdevAlias(virDomainDefPtr def,
                               virDomainRedirdevDefPtr redirdev,
@@ -453,11 +509,11 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
     }
 
     for (i = 0; i < def->nfss; i++) {
-        if (virAsprintf(&def->fss[i]->info.alias, "fs%zu", i) < 0)
+        if (qemuAssignDeviceFSAlias(def->fss[i], i) < 0)
             return -1;
     }
     for (i = 0; i < def->nsounds; i++) {
-        if (virAsprintf(&def->sounds[i]->info.alias, "sound%zu", i) < 0)
+        if (qemuAssignDeviceSoundAlias(def->sounds[i], i) < 0)
             return -1;
     }
     for (i = 0; i < def->nhostdevs; i++) {
@@ -475,7 +531,7 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
             return -1;
     }
     for (i = 0; i < def->nvideos; i++) {
-        if (virAsprintf(&def->videos[i]->info.alias, "video%zu", i) < 0)
+        if (qemuAssignDeviceVideoAlias(def->videos[i], i) < 0)
             return -1;
     }
     for (i = 0; i < def->ncontrollers; i++) {
@@ -503,7 +559,7 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
             return -1;
     }
     for (i = 0; i < def->nhubs; i++) {
-        if (virAsprintf(&def->hubs[i]->info.alias, "hub%zu", i) < 0)
+        if (qemuAssignDeviceHubAlias(def->hubs[i], i) < 0)
             return -1;
     }
     for (i = 0; i < def->nshmems; i++) {
@@ -511,7 +567,7 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
             return -1;
     }
     for (i = 0; i < def->nsmartcards; i++) {
-        if (virAsprintf(&def->smartcards[i]->info.alias, "smartcard%zu", i) < 0)
+        if (qemuAssignDeviceSmartcardAlias(def->smartcards[i], i) < 0)
             return -1;
     }
     if (def->watchdog) {
@@ -519,7 +575,7 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
             return -1;
     }
     if (def->memballoon) {
-        if (virAsprintf(&def->memballoon->info.alias, "balloon%d", 0) < 0)
+        if (qemuAssingDeviceMemballoonAlias(def->memballoon, 0) < 0)
             return -1;
     }
     for (i = 0; i < def->nrngs; i++) {
@@ -527,7 +583,7 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
             return -1;
     }
     if (def->tpm) {
-        if (virAsprintf(&def->tpm->info.alias, "tpm%d", 0) < 0)
+        if (qemuAssignDeviceTPMAlias(def->tpm, 0) < 0)
             return -1;
     }
     for (i = 0; i < def->nmems; i++) {