diff --git a/Rsconscript b/Rsconscript
index 3411937..6b05d7b 100644
--- a/Rsconscript
+++ b/Rsconscript
@@ -78,7 +78,7 @@ hel_env = env "hel", use: %w[ldc2 x86_64-w64-mingw32-gcc] do |env|
   env["DFLAGS"] += %w[-mtriple=x86_64-unknown-windows-coff --betterC -release -O3]
   env["D_IMPORT_PATH"] += %w[src uefi-d/source]
   env["LD"] = "x86_64-w64-mingw32-gcc"
-  env["LDFLAGS"] += %w[-nostdlib -Wl,-dll -shared -Wl,--subsystem,10 -e efi_main]
+  env["LDFLAGS"] += %w[-nostdlib -Wl,-dll -shared -Wl,--subsystem,10 -e efi_main -Wl,-Map,${_TARGET}.map]
   env["LDCMD"] = %w[${LD} -o ${_TARGET} ${LDFLAGS} ${_SOURCES} ${LIBDIRPREFIX}${LIBPATH} ${LIBLINKPREFIX}${LIBS}]
   env["OBJDUMP"] = "x86_64-w64-mingw32-objdump"
   env.Program("^/BOOTX64.EFI", "${sources}")