diff --git a/cmd/incus/file.go b/cmd/incus/file.go
index 1d623c8c3f9..664ba09ca06 100644
--- a/cmd/incus/file.go
+++ b/cmd/incus/file.go
@@ -146,8 +146,17 @@ incus file create --type=symlink foo/bar baz
 	cmd.Flags().IntVar(&c.file.flagUID, "uid", -1, i18n.G("Set the file's uid on create")+"``")
 	cmd.Flags().StringVar(&c.file.flagMode, "mode", "", i18n.G("Set the file's perms on create")+"``")
 	cmd.Flags().StringVar(&c.flagType, "type", "file", i18n.G("The type to create (file, symlink, or directory)")+"``")
+
 	cmd.RunE = c.Run
 
+	cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) == 0 {
+			return c.global.cmpFiles(toComplete, false)
+		}
+
+		return nil, cobra.ShellCompDirectiveNoFileComp
+	}
+
 	return cmd
 }
 
@@ -326,6 +335,10 @@ func (c *cmdFileDelete) Command() *cobra.Command {
 
 	cmd.RunE = c.Run
 
+	cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		return c.global.cmpFiles(toComplete, false)
+	}
+
 	return cmd
 }
 
@@ -402,6 +415,14 @@ func (c *cmdFileEdit) Command() *cobra.Command {
 
 	cmd.RunE = c.Run
 
+	cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) == 0 {
+			return c.global.cmpFiles(toComplete, false)
+		}
+
+		return nil, cobra.ShellCompDirectiveNoFileComp
+	}
+
 	return cmd
 }
 
@@ -1270,11 +1291,24 @@ func (c *cmdFileMount) Command() *cobra.Command {
 		`incus file mount foo/root fooroot
    To mount /root from the instance foo onto the local fooroot directory.`))
 
-	cmd.RunE = c.Run
 	cmd.Flags().StringVar(&c.flagListen, "listen", "", i18n.G("Setup SSH SFTP listener on address:port instead of mounting"))
 	cmd.Flags().BoolVar(&c.flagAuthNone, "no-auth", false, i18n.G("Disable authentication when using SSH SFTP listener"))
 	cmd.Flags().StringVar(&c.flagAuthUser, "auth-user", "", i18n.G("Set authentication user when using SSH SFTP listener"))
 
+	cmd.RunE = c.Run
+
+	cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) == 0 {
+			return c.global.cmpFiles(toComplete, false)
+		}
+
+		if len(args) == 1 {
+			return nil, cobra.ShellCompDirectiveDefault
+		}
+
+		return nil, cobra.ShellCompDirectiveNoFileComp
+	}
+
 	return cmd
 }