diff --git a/chacha_avx.cpp b/chacha_avx.cpp
index 853d2854..087c7a1e 100644
--- a/chacha_avx.cpp
+++ b/chacha_avx.cpp
@@ -371,7 +371,7 @@ void ChaCha_OperateKeystream_AVX2(const word32 *state, const byte* input, byte *
         _mm256_storeu_si256(output_mm + 14, _mm256_permute2x128_si256(X3_0, X3_1, 0 + (2 << 4)));
         _mm256_storeu_si256(output_mm + 15, _mm256_permute2x128_si256(X3_2, X3_3, 0 + (2 << 4)));
     }
-    
+
     // https://stackoverflow.com/a/7841251/608639
     _mm256_zeroupper();
 }