diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 16cbb7d0c3..e8b0f00ad6 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -29481,7 +29481,7 @@ virDomainDeviceDefCopy(virDomainDeviceDef *src,
 
 
 virSecurityLabelDef *
-virDomainDefGetSecurityLabelDef(virDomainDef *def, const char *model)
+virDomainDefGetSecurityLabelDef(const virDomainDef *def, const char *model)
 {
     size_t i;
     virSecurityLabelDef *seclabel = NULL;
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 9f32bcf9cf..984939cc69 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3776,7 +3776,7 @@ virDomainObjGetState(virDomainObj *obj, int *reason)
         ATTRIBUTE_NONNULL(1);
 
 virSecurityLabelDef *
-virDomainDefGetSecurityLabelDef(virDomainDef *def, const char *model);
+virDomainDefGetSecurityLabelDef(const virDomainDef *def, const char *model);
 
 virSecurityDeviceLabelDef *
 virDomainChrSourceDefGetSecurityLabelDef(virDomainChrSourceDef *def,