diff --git a/arch/sparc/cpu/leon3/start.S b/arch/sparc/cpu/leon3/start.S
index 70aee78054..bbc1b3476c 100644
--- a/arch/sparc/cpu/leon3/start.S
+++ b/arch/sparc/cpu/leon3/start.S
@@ -1,3 +1,5 @@
+#include <config.h>
+
 TRAP ta 0; nop; nop; nop;
 
 /* Software trap. Treat as BAD_TRAP for the time being... */