diff --git a/src/target.zig b/src/target.zig
index c64fd988cf4de9c881a8e79041ea8f7b80b099d0..e2cbd3e1839dd77df3d6926ee7333dccf405558c 100644
--- a/src/target.zig
+++ b/src/target.zig
@@ -118,10 +118,6 @@ pub fn defaultSingleThreaded(target: *const std.Target) bool {
         .wasm32, .wasm64 => return true,
         else => {},
     }
-    switch (target.os.tag) {
-        .haiku => return true,
-        else => {},
-    }
     return false;
 }