diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 83b277beeb..0ce5aa5906 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -10134,14 +10134,8 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
             serial->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
             virBufferAsprintf(&cmd, "spapr-vty,chardev=char%s",
                               serial->info.alias);
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
         }
     } else {
-        virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
-                          virDomainChrSerialTargetTypeToString(serial->targetType),
-                          serial->info.alias, serial->info.alias);
-
         switch (serial->targetType) {
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB:
             if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_SERIAL)) {
@@ -10156,9 +10150,6 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("usb-serial requires address of usb type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
 
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA:
@@ -10168,9 +10159,6 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("isa-serial requires address of isa type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
 
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_PCI:
@@ -10186,13 +10174,17 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("pci-serial requires address of pci type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
         }
+
+        virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
+                          virDomainChrSerialTargetTypeToString(serial->targetType),
+                          serial->info.alias, serial->info.alias);
     }
 
+    if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
+        goto error;
+
     if (virBufferCheckError(&cmd) < 0)
         goto error;