diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 82df3828..84db7702 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -1939,11 +1939,7 @@ __PACKAGE__->register_method({
 	properties => {
 	    node => get_standard_option('pve-node'),
 	    vmid => get_standard_option('pve-vmid'),
-	    snapname => {
-		type => 'string',
-		description => "The name of the snapshot",
-		maxLength => 40,
-	    },
+	    snapname => get_standard_option('pve-snapshot-name'),
 	    vmstate => {
 		optional => 1,
 		type => 'boolean',
@@ -2002,11 +1998,7 @@ __PACKAGE__->register_method({
 	properties => {
 	    vmid => get_standard_option('pve-vmid'),
 	    node => get_standard_option('pve-node'),
-	    snapname => {
-		type => 'string',
-		description => "The name of the snapshot",
-		maxLength => 40,
-	    },
+	    snapname => get_standard_option('pve-snapshot-name'),
 	},
     },
     returns => {
@@ -2042,11 +2034,7 @@ __PACKAGE__->register_method({
 	properties => {
 	    node => get_standard_option('pve-node'),
 	    vmid => get_standard_option('pve-vmid'),
-	    snapname => {
-		type => 'string',
-		description => "The name of the snapshot",
-		maxLength => 40,
-	    },
+	    snapname => get_standard_option('pve-snapshot-name'),
 	},
     },
     returns => {
@@ -2091,11 +2079,7 @@ __PACKAGE__->register_method({
 	properties => {
 	    node => get_standard_option('pve-node'),
 	    vmid => get_standard_option('pve-vmid'),
-	    snapname => {
-		type => 'string',
-		description => "The name of the snapshot",
-		maxLength => 40,
-	    },
+	    snapname => get_standard_option('pve-snapshot-name'),
 	},
     },
     returns => {
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 8ee0dacc..e0be68f7 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -54,6 +54,12 @@ PVE::JSONSchema::register_standard_option('pve-qm-stateuri', {
     optional => 1,
 });
 
+PVE::JSONSchema::register_standard_option('pve-snapshot-name', {
+    description => "The name of the snapshot.",
+    type => 'string', format => 'pve-configid',
+    maxLength => 40,
+});
+
 #no warnings 'redefine';
 
 unless(defined(&_VZSYSCALLS_H_)) {