diff --git a/test/api/test-unicode.c b/test/api/test-unicode.c
index 5c1bcb1bc..6037408aa 100644
--- a/test/api/test-unicode.c
+++ b/test/api/test-unicode.c
@@ -549,6 +549,8 @@ typedef struct {
     G_N_ELEMENTS (name##_tests_more), \
     DEFAULT \
   }
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 static const property_t properties[] =
 {
   PROPERTY (combining_class, 0),
@@ -556,6 +558,7 @@ static const property_t properties[] =
   PROPERTY (mirroring, RETURNS_UNICODE_ITSELF),
   PROPERTY (script, (unsigned int) HB_SCRIPT_UNKNOWN)
 };
+#pragma GCC diagnostic pop
 #undef PROPERTY
 
 static void