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-rw-r--r--unit/test-sms.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/unit/test-sms.c b/unit/test-sms.c
index e0ec70d8..52d68590 100644
--- a/unit/test-sms.c
+++ b/unit/test-sms.c
@@ -772,7 +772,7 @@ static void test_prepare_concat()
GSList *l;
char *decoded_str;
GSList *pdus = NULL;
- char pdu[176];
+ unsigned char pdu[176];
struct sms *sms;
struct sms decoded;
int pdu_len, tpdu_len;