diff --git a/adv_simd.h b/adv_simd.h
index c72b434d..f84e60d9 100644
--- a/adv_simd.h
+++ b/adv_simd.h
@@ -367,11 +367,11 @@ CRYPTOPP_INLINE size_t AdvancedProcessBlocks128_6x1_NEON(F1 func1, F6 func6,
 
 #if (CRYPTOPP_LITTLE_ENDIAN)
     const uint32x4_t s_one = {0, 0, 0, 1<<24};
-    const uint32x4_t s_two = {0, 2<<24, 0, 2<<24};
+    //const uint32x4_t s_two = {0, 2<<24, 0, 2<<24};
 #else
     // TODO: verify these constants on ARM-BE
     const uint32x4_t s_one = {0, 0, 0, 1};
-    const uint32x4_t s_two = {0, 2, 0, 2};
+    //const uint32x4_t s_two = {0, 2, 0, 2};
 #endif
 
     const size_t blockSize = 16;
@@ -530,11 +530,11 @@ CRYPTOPP_INLINE size_t AdvancedProcessBlocks128_4x1_NEON(F1 func1, F4 func4,
 
 #if (CRYPTOPP_LITTLE_ENDIAN)
     const uint32x4_t s_one = {0, 0, 0, 1<<24};
-    const uint32x4_t s_two = {0, 2<<24, 0, 2<<24};
+    //const uint32x4_t s_two = {0, 2<<24, 0, 2<<24};
 #else
     // TODO: verify these constants on ARM-BE
     const uint32x4_t s_one = {0, 0, 0, 1};
-    const uint32x4_t s_two = {0, 2, 0, 2};
+    //const uint32x4_t s_two = {0, 2, 0, 2};
 #endif
 
     const size_t blockSize = 16;