diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 391157643111bce45d8290b0d89e34cee5ee75a7..9f38edf419e4dde698224173873fe8666f333712 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -33,15 +33,10 @@
 #define EXCP_YIELD      0x10004 /* cpu wants to yield timeslice to another */
 
 /* some important defines:
- *
- * WORDS_ALIGNED : if defined, the host cpu can only make word aligned
- * memory accesses.
  *
  * HOST_WORDS_BIGENDIAN : if defined, the host cpu is big endian and
  * otherwise little endian.
  *
- * (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet))
- *
  * TARGET_WORDS_BIGENDIAN : same for target cpu
  */
 
diff --git a/include/qemu-common.h b/include/qemu-common.h
index 835cbc68b8e4982fc8bf50e1fdae128005cac00d..1f2cb9431823491c930c4536e958db2add1b8ea5 100644
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -14,10 +14,6 @@
 
 #include "qemu/fprintf-fn.h"
 
-#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
-#define WORDS_ALIGNED
-#endif
-
 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
 
 #include "qemu/option.h"