diff --git a/Rsconscript b/Rsconscript
index 96e3446..ebddbc2 100644
--- a/Rsconscript
+++ b/Rsconscript
@@ -145,7 +145,7 @@ hulk_env = env "hulk", use: %w[ldc2 x86_64-elf-gcc] do |env|
   env.CheckThreadLocal(:hulk_map_check, "^/hulk.elf.map")
   env.depends("^/hulk.elf", "src/hulk/hulk.ld")
   env["SIZE"] = "x86_64-elf-size"
-  env.Size("^/hulk.size", "^/hulk.elf")
+  env.Size("^/hulk.elf.size", "^/hulk.elf")
   env.Disassemble("^/hulk.elf.txt", "^/hulk.elf")
   env.Command("^/hulk.bin", "^/hulk.elf",
               "CMD" => %W[${OBJCOPY} -O binary ${_SOURCES} ${_TARGET}],