diff --git a/vm.c b/vm.c
index 3c809c65d3..7185f77a43 100644
--- a/vm.c
+++ b/vm.c
@@ -3884,9 +3884,6 @@ Init_VM(void)
 #if OPT_INLINE_METHOD_CACHE
     rb_ary_push(opts, rb_str_new2("inline method cache"));
 #endif
-#if OPT_BLOCKINLINING
-    rb_ary_push(opts, rb_str_new2("block inlining"));
-#endif
 
     /* ::RubyVM::INSTRUCTION_NAMES
      * A list of bytecode instruction names in MRI.
diff --git a/vm_opts.h b/vm_opts.h
index b0ca81f304..86616649db 100644
--- a/vm_opts.h
+++ b/vm_opts.h
@@ -45,7 +45,6 @@
 #define OPT_CHECKED_RUN              1
 #define OPT_INLINE_METHOD_CACHE      1
 #define OPT_GLOBAL_METHOD_CACHE      1
-#define OPT_BLOCKINLINING            0
 
 #ifndef OPT_IC_FOR_IVAR
 #define OPT_IC_FOR_IVAR 1