diff --git a/tests/printf_unit_test.c b/tests/printf_unit_test.c
index d7b12c6db..098c29fd9 100644
--- a/tests/printf_unit_test.c
+++ b/tests/printf_unit_test.c
@@ -23,6 +23,10 @@
 
 #define MSG "printf test failed: %s, %s", real, expected
 
+#if defined(__GNUC__) && __GNUC__ >= 7
+#pragma GCC diagnostic ignored "-Wformat-truncation="
+#endif
+
 static void
 printf_test (void)
 {