diff --git a/tcg/tcg.h b/tcg/tcg.h
index 7e903f30f0..48a56f0b15 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -344,7 +344,7 @@ struct TCGContext {
 
     /* goto_tb support */
     uint8_t *code_buf;
-    unsigned long *tb_next;
+    uintptr_t *tb_next;
     uint16_t *tb_next_offset;
     uint16_t *tb_jmp_offset; /* != NULL if USE_DIRECT_JUMP */