diff --git a/src/trace.zig b/src/trace.zig
index b9cd3c7..49a2791 100644
--- a/src/trace.zig
+++ b/src/trace.zig
@@ -59,7 +59,7 @@ pub const Trace = struct {
         self.file.?.close(self.io);
     }
 
-    pub fn setOutputFile(self: *Trace, path: []const u8) void {
+    pub fn setOutputFile(self: *Trace, path: []const u8) !void {
         self.file = try Io.Dir.cwd().createFile(self.io, path, .{});
     }