diff --git a/test/tests/testunity.c b/test/tests/testunity.c
index 56f0328..f5a3a07 100644
--- a/test/tests/testunity.c
+++ b/test/tests/testunity.c
@@ -5730,7 +5730,11 @@ void testHexPrintsUpToMaxNumberOfNibbles(void)
     startPutcharSpy();
     UnityPrintNumberHex(0xBEE, 21);
     endPutcharSpy();
-    TEST_ASSERT_EQUAL_INT(sizeof(UNITY_INT)*2, strlen(getBufferPutcharSpy()));
+#ifdef UNITY_SUPPORT_64
+    TEST_ASSERT_EQUAL_INT(16, strlen(getBufferPutcharSpy()));
+#else
+    TEST_ASSERT_EQUAL_INT( 8, strlen(getBufferPutcharSpy()));
+#endif
 #endif
 }