diff --git a/Managers/UTMVirtualMachine.m b/Managers/UTMVirtualMachine.m
index b81352139..b5cd96605 100644
--- a/Managers/UTMVirtualMachine.m
+++ b/Managers/UTMVirtualMachine.m
@@ -133,6 +133,8 @@ + (NSString *)virtualMachineName:(NSURL *)url {
 }
 
 + (NSURL *)virtualMachinePath:(NSString *)name inParentURL:(NSURL *)parent {
+    NSCharacterSet *illegalFileNameCharacters = [NSCharacterSet characterSetWithCharactersInString:@"/:\\?%*|\"<>"];
+    name = [[name componentsSeparatedByCharactersInSet:illegalFileNameCharacters] componentsJoinedByString:@"-"];
     return [[parent URLByAppendingPathComponent:name] URLByAppendingPathExtension:kUTMBundleExtension];
 }
 
diff --git a/Managers/UTMVirtualMachine.swift b/Managers/UTMVirtualMachine.swift
index 12291707c..02927944f 100644
--- a/Managers/UTMVirtualMachine.swift
+++ b/Managers/UTMVirtualMachine.swift
@@ -73,7 +73,7 @@ extension UTMVirtualMachine: ObservableObject {
     func saveUTM() async throws {
         let fileManager = FileManager.default
         let existingPath = path
-        let newPath = existingPath.deletingLastPathComponent().appendingPathComponent(config.name).appendingPathExtension("utm")
+        let newPath = UTMVirtualMachine.virtualMachinePath(config.name, inParentURL: existingPath.deletingLastPathComponent())
         do {
             try await config.save(to: existingPath)
             try await updateRegistryFromConfig()