diff --git a/litex/soc/cores/cpu/blackparrot/crt0.S b/litex/soc/cores/cpu/blackparrot/crt0.S
index 5f5cb0962..b6d57d133 100644
--- a/litex/soc/cores/cpu/blackparrot/crt0.S
+++ b/litex/soc/cores/cpu/blackparrot/crt0.S
@@ -53,7 +53,7 @@ trap_entry:
 
 
 crt_init:
-  la sp, _fstack + 8
+  la sp, _fstack
   la a0, trap_entry
   csrw mtvec, a0
 
diff --git a/litex/soc/cores/cpu/rocket/crt0.S b/litex/soc/cores/cpu/rocket/crt0.S
index 8a9514d55..2bb4293ab 100644
--- a/litex/soc/cores/cpu/rocket/crt0.S
+++ b/litex/soc/cores/cpu/rocket/crt0.S
@@ -53,7 +53,7 @@ trap_entry:
 
 
 crt_init:
-  la sp, _fstack + 8
+  la sp, _fstack
   la a0, trap_entry
   csrw mtvec, a0