diff --git a/test/convert.c b/test/convert.c
index 0f22ea8eb..c7a36357b 100644
--- a/test/convert.c
+++ b/test/convert.c
@@ -18,36 +18,36 @@ int test_try_into(void)
 	uint16_t u16 = 0;
 	int i;
 
-	/* Testing size_t -> uint16_t */
+#if __STDC_VERSION__ >= 201112L /* Needs C11 support */
 	size = SIZE_MAX;
 	err  = try_into(u16, size);
 	TEST_EQUALS(ERANGE, err);
-
+#endif
 	size = 5000;
-	err  = try_into(u16, size);
+	err  = try_into_u16_from_size(&u16, size);
 	TEST_ERR(err);
 	TEST_EQUALS(size, u16);
 
 	size = SIZE_MAX;
-	err  = try_into(u16, size);
+	err  = try_into_u16_from_size(&u16, size);
 	TEST_EQUALS(ERANGE, err);
 
 	/* Testing int -> uint16_t */
 	i   = INT_MAX;
-	err = try_into(u16, i);
+	err = try_into_u16_from_int(&u16, i);
 	TEST_EQUALS(ERANGE, err);
 
 	i   = -50;
-	err = try_into(u16, i);
+	err = try_into_u16_from_int(&u16, i);
 	TEST_EQUALS(ERANGE, err);
 
 	/* Testing size_t -> int */
 	size = SIZE_MAX;
-	err  = try_into(i, size);
+	err  = try_into_int_from_size(&i, size);
 	TEST_EQUALS(ERANGE, err);
 
 	size = INT_MAX;
-	err  = try_into(i, size);
+	err  = try_into_int_from_size(&i, size);
 	TEST_ERR(err);
 	TEST_EQUALS(INT_MAX, i);