diff --git a/miniz_zip.c b/miniz_zip.c
index 5ae3193..064d448 100644
--- a/miniz_zip.c
+++ b/miniz_zip.c
@@ -277,7 +277,7 @@ struct mz_zip_internal_state_tag
 
 #define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size
 
-#if defined(DEBUG) || defined(_DEBUG) || defined(NDEBUG)
+#if defined(DEBUG) || defined(_DEBUG)
 static MZ_FORCEINLINE mz_uint mz_zip_array_range_check(const mz_zip_array *pArray, mz_uint index)
 {
     MZ_ASSERT(index < pArray->m_size);