diff --git a/src/Command.zig b/src/Command.zig
index e798a3f7b..6aa96f393 100644
--- a/src/Command.zig
+++ b/src/Command.zig
@@ -353,7 +353,7 @@ test "Command: pre exec" {
 }
 
 test "Command: redirect stdout to file" {
-    const td = try TempDir.init();
+    var td = try TempDir.init();
     defer td.deinit();
     var stdout = try td.dir.createFile("stdout.txt", .{ .read = true });
     defer stdout.close();
@@ -378,7 +378,7 @@ test "Command: redirect stdout to file" {
 }
 
 test "Command: custom env vars" {
-    const td = try TempDir.init();
+    var td = try TempDir.init();
     defer td.deinit();
     var stdout = try td.dir.createFile("stdout.txt", .{ .read = true });
     defer stdout.close();
diff --git a/src/TempDir.zig b/src/TempDir.zig
index d1850f128..d33f6d58e 100644
--- a/src/TempDir.zig
+++ b/src/TempDir.zig
@@ -52,13 +52,13 @@ pub fn init() !TempDir {
 
 /// Name returns the name of the directory. This is just the basename
 /// and is not the full absolute path.
-pub fn name(self: TempDir) []const u8 {
+pub fn name(self: *TempDir) []const u8 {
     return std.mem.sliceTo(&self.name_buf, 0);
 }
 
 /// Finish with the temporary directory. This deletes all contents in the
 /// directory. This is safe to call multiple times.
-pub fn deinit(self: TempDir) void {
+pub fn deinit(self: *TempDir) void {
     self.parent.deleteTree(self.name()) catch |err|
         log.err("error deleting temp dir err={}", .{err});
 }