diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index b6d1bf16214905bd58518f3a5041949735bac996..7715cadbdc2550652cf206d5a3ae2fcae8cf4128 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -25701,13 +25701,13 @@ virDomainDefHasMemballoon(const virDomainDef *def)
  * Shorten domain name to avoid possible path length limitations.
  */
 char *
-virDomainObjGetShortName(virDomainObjPtr vm)
+virDomainObjGetShortName(const virDomainDef *def)
 {
     const int dommaxlen = 20;
     char *ret = NULL;
 
     ignore_value(virAsprintf(&ret, "%d-%.*s",
-                             vm->def->id, dommaxlen, vm->def->name));
+                             def->id, dommaxlen, def->name));
 
     return ret;
 }
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 747c11e3d72da0a5709c159be4466eda44fb6592..c9f2bf3d9b88e4bcca257d509d45270f948003d7 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3205,7 +3205,7 @@ int virDomainDefGetVcpuPinInfoHelper(virDomainDefPtr def,
 
 bool virDomainDefHasMemballoon(const virDomainDef *def) ATTRIBUTE_NONNULL(1);
 
-char *virDomainObjGetShortName(virDomainObjPtr vm);
+char *virDomainObjGetShortName(const virDomainDef *def) ATTRIBUTE_NONNULL(1);
 
 int
 virDomainGetBlkioParametersAssignFromDef(virDomainDefPtr def,
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 4aae14d9d10365d49c29faa1d22e73e71ab76ace..d3e505b17639f1125e68b3d1c632bffb9a6cc073 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1475,7 +1475,7 @@ qemuDomainSetPrivatePaths(virQEMUDriverPtr driver,
 {
     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
     qemuDomainObjPrivatePtr priv = vm->privateData;
-    char *domname = virDomainObjGetShortName(vm);
+    char *domname = virDomainObjGetShortName(vm->def);
     int ret = -1;
 
     if (!domname)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 6b177e9e5b250ecaa832b664db221a33a8c98f15..3f4e06bc3fdc501766b99a379832dac560fcc3d7 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3885,7 +3885,7 @@ getAutoDumpPath(virQEMUDriverPtr driver,
                 virDomainObjPtr vm)
 {
     char *dumpfile = NULL;
-    char *domname = virDomainObjGetShortName(vm);
+    char *domname = virDomainObjGetShortName(vm->def);
     char timestr[100];
     struct tm time_info;
     time_t curtime = time(NULL);