diff --git a/src/link/Wasm.zig b/src/link/Wasm.zig
index 14d864c330..6dd3bc56ff 100644
--- a/src/link/Wasm.zig
+++ b/src/link/Wasm.zig
@@ -2218,6 +2218,9 @@ pub fn flushModule(wasm: *Wasm, comp: *Compilation, prog_node: *std.Progress.Nod
     // We write the magic bytes at the end so they will only be written
     // if everything succeeded as expected. So populate with 0's for now.
     try binary_writer.writeAll(&[_]u8{0} ** 8);
+    // (Re)set file pointer to 0
+    try wasm.base.file.?.setEndPos(0);
+    try wasm.base.file.?.seekTo(0);
 
     // Type section
     if (wasm.func_types.items.len != 0) {