diff --git a/firmware/target/mips/ingenic_jz47xx/crt0.S b/firmware/target/mips/ingenic_jz47xx/crt0.S
index 258a5c02fc..1652bea8e5 100644
--- a/firmware/target/mips/ingenic_jz47xx/crt0.S
+++ b/firmware/target/mips/ingenic_jz47xx/crt0.S
@@ -185,7 +185,7 @@ _irq_stack_loop:
     jal     system_main  /* Init clocks etc first */
     ssnop
     j       main
-    ssnop
+    move    ra, zero     /* init backtrace root */
 
 
     /*
diff --git a/firmware/target/mips/ingenic_x1000/crt0.S b/firmware/target/mips/ingenic_x1000/crt0.S
index d079b01e2a..9d89ac1227 100644
--- a/firmware/target/mips/ingenic_x1000/crt0.S
+++ b/firmware/target/mips/ingenic_x1000/crt0.S
@@ -110,7 +110,7 @@ _realstart:
     jal     system_early_init
     nop
     j       main
-    nop
+    move    ra, zero     /* init backtrace root */
 
     /* copy(void* src, void* dst, void* dst_end) */
 _copy: