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-rw-r--r--epan/diam_dict.l2
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/diam_dict.l b/epan/diam_dict.l
index 9615582681..730c02652c 100644
--- a/epan/diam_dict.l
+++ b/epan/diam_dict.l
@@ -111,7 +111,7 @@ static ddict_xmlpi_t* last_xmlpi;
static char** attr_str;
static unsigned* attr_uint;
-static void ddict_debug(const char* fmt, ...);
+static void ddict_debug(const char* fmt, ...) G_GNUC_PRINTF(1, 2);
static void append_to_buffer(const char* txt, unsigned len);
static FILE* ddict_open(const char*, const char*);