diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 10ae5df..15b23b9 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -459,6 +459,10 @@
     }
 
 #if !defined(CONFIG_USER_ONLY)
+    if (env->debugger) {
+        return RISCV_EXCP_NONE;
+    }
+
     /*
      * With a CSR read-write instruction:
      * 1) The seed CSR is always available in machine mode as normal.