diff --git a/src/bpf_tracing.h b/src/bpf_tracing.h
index 6db88f4..137b13d 100644
--- a/src/bpf_tracing.h
+++ b/src/bpf_tracing.h
@@ -415,6 +415,8 @@ struct pt_regs___arm64 {
  * https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html
  */
 
+/* loongarch provides struct user_pt_regs instead of struct pt_regs to userspace */
+#define __PT_REGS_CAST(x) ((const struct user_pt_regs *)(x))
 #define __PT_PARM1_REG regs[4]
 #define __PT_PARM2_REG regs[5]
 #define __PT_PARM3_REG regs[6]