diff --git a/src/main.rs b/src/main.rs
index 77d8b75b..56b70939 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -29,7 +29,6 @@ extern "C" {
     static _stack_start: u8;
     static _bss_start: u8;
     static _bss_stop: u8;
-    static _stack_top: u8;
     static _start_address: u8;
 }