diff --git a/litex/soc/cores/cpu/rocket/crt0.S b/litex/soc/cores/cpu/rocket/crt0.S
index d28a5c04f..43a861563 100644
--- a/litex/soc/cores/cpu/rocket/crt0.S
+++ b/litex/soc/cores/cpu/rocket/crt0.S
@@ -112,11 +112,14 @@ inf_loop:
   j inf_loop
 
 .bss
+  .align 8
 smp_ap_args:
   .dword 0
   .dword 0
   .dword 0
+  .align 8
 smp_ap_target:
   .dword 0
+  .align 8
 smp_ap_ready:
   .dword 0