diff --git a/cputlb.c b/cputlb.c
index d2da404ef4..9270055b83 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -57,7 +57,7 @@ void tlb_flush(CPUArchState *env, int flush_global)
     cpu->current_tb = NULL;
 
     memset(env->tlb_table, -1, sizeof(env->tlb_table));
-    memset(env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *));
+    memset(env->tb_jmp_cache, 0, sizeof(env->tb_jmp_cache));
 
     env->tlb_flush_addr = -1;
     env->tlb_flush_mask = 0;
diff --git a/translate-all.c b/translate-all.c
index 1c63d78b7d..105c25aff3 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -703,11 +703,10 @@ void tb_flush(CPUArchState *env1)
     CPU_FOREACH(cpu) {
         CPUArchState *env = cpu->env_ptr;
 
-        memset(env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof(void *));
+        memset(env->tb_jmp_cache, 0, sizeof(env->tb_jmp_cache));
     }
 
-    memset(tcg_ctx.tb_ctx.tb_phys_hash, 0,
-            CODE_GEN_PHYS_HASH_SIZE * sizeof(void *));
+    memset(tcg_ctx.tb_ctx.tb_phys_hash, 0, sizeof(tcg_ctx.tb_ctx.tb_phys_hash));
     page_flush_tb();
 
     tcg_ctx.code_gen_ptr = tcg_ctx.code_gen_buffer;