diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 883e9df0c2..58ed4c6d05 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -4051,6 +4051,7 @@ static void handle_rev16(DisasContext *s, unsigned int sf,
     tcg_gen_shli_i64(tcg_rd, tcg_rd, 8);
     tcg_gen_or_i64(tcg_rd, tcg_rd, tcg_tmp);
 
+    tcg_temp_free_i64(mask);
     tcg_temp_free_i64(tcg_tmp);
 }