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-rw-r--r--src/postqueue/showq_json.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/postqueue/showq_json.c b/src/postqueue/showq_json.c
index fc205c7..db79404 100644
--- a/src/postqueue/showq_json.c
+++ b/src/postqueue/showq_json.c
@@ -96,7 +96,7 @@ static char *json_quote(VSTRING *result, const char *text)
VSTRING_ADDCH(result, 't');
break;
default:
- vstring_sprintf(result, "\\u%04X", ch);
+ vstring_sprintf_append(result, "\\u%04X", ch);
break;
}
} else {