diff --git a/src/main/scala/vexriscv/plugin/CsrPlugin.scala b/src/main/scala/vexriscv/plugin/CsrPlugin.scala
index 668f1b7..0cb6a79 100644
--- a/src/main/scala/vexriscv/plugin/CsrPlugin.scala
+++ b/src/main/scala/vexriscv/plugin/CsrPlugin.scala
@@ -1136,7 +1136,11 @@ class CsrPlugin(val config: CsrPluginConfig) extends Plugin[VexRiscv] with Excep
             }
           }
 
-          illegalAccess setWhen(privilege < csrAddress(9 downto 8).asUInt)
+          when(privilege < csrAddress(9 downto 8).asUInt){
+            illegalAccess := True
+            readInstruction := False
+            writeInstruction := False
+          }
           illegalAccess clearWhen(!arbitration.isValid || !input(IS_CSR))
         }
       }