diff --git a/nemu/src/isa/riscv32/inst.c b/nemu/src/isa/riscv32/inst.c
index 4758b0f..33ad44e 100644
--- a/nemu/src/isa/riscv32/inst.c
+++ b/nemu/src/isa/riscv32/inst.c
@@ -53,7 +53,7 @@ static void decode_operand(Decode *s, int *rd, word_t *src1, word_t *src2, word_
 
 static void do_branch(Decode *s, bool condition, word_t offset) {
   if (condition) {
-    printf("offset: %u %d", offset, offset);
+    printf("offset: %x %d\n", offset, offset);
     s->dnpc = s->pc + offset;
   }
 }