1 files changed, 1 insertions, 0 deletions
diff --git a/trace2.h b/trace2.h
index 1f0669bbd2..19e04bf040 100644
--- a/trace2.h
+++ b/trace2.h
@@ -390,6 +390,7 @@ void trace2_region_enter_printf_va_fl(const char *file, int line,
 	trace2_region_enter_printf_va_fl(__FILE__, __LINE__, (category), \
 					 (label), (repo), (fmt), (ap))
 
+__attribute__((format (printf, 6, 7)))
 void trace2_region_enter_printf_fl(const char *file, int line,
 				   const char *category, const char *label,
 				   const struct repository *repo,