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-rw-r--r--board/theobroma-systems/puma_rk3399/puma-rk3399.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
index 26c4535f1b..c9768dd75c 100644
--- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c
+++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
@@ -138,7 +138,7 @@ static void setup_serial(void)
serialno = crc32_no_comp(0, low, 8);
serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
- snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);
+ snprintf(serialno_str, sizeof(serialno_str), "%0llx", serialno);
env_set("cpuid#", cpuid_str);
env_set("serial#", serialno_str);