diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 7756e7b03c..adbb036905 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -23,11 +23,6 @@
  */
 #define TCG_TARGET_I386 1
 
-#if defined(__x86_64__)
-# define TCG_TARGET_REG_BITS 64
-#else
-# define TCG_TARGET_REG_BITS 32
-#endif
 //#define TCG_TARGET_WORDS_BIGENDIAN
 
 #if TCG_TARGET_REG_BITS == 64